[u]Chapter One

I just had my thirty-second birthday. I have one sibling; my younger sister Deborah – or Dee – who’s twenty-eight. Since early adulthood my work has taken me all over the country and we lost touch, meeting up for Christmas and birthdays, but apart from that contact was infrequent; just the odd phone call or flying visit now and then. Despite that, we have always been close, and I have finally returned to our home town on a permanent basis, so we see each other regularly now.

Dee has had a rough time. She had married and had kids young to a man who was controlling, and violent when drunk. She eventually got away from him, but the damage was done. She’s in a relationship with a guy called Tom now, who seems nice enough and treats her well, but I don’t see any fireworks there. No real hint of passion. I don’t know if Dee is holding back because she’s afraid of getting hurt again, but he’s very overweight, and I wonder how satisfying her sex life must be.

I had piled on a few extra pounds with all my travelling and living in hotels. Having settled again, I made a point of getting myself back into shape. I like the way I look and feel again.

Dee came to me about her own weight problems, and I shared my diet and exercise routines with her, coaching her along the way. We met at hers three times a week, and I took her through a series of bodyweight floor-exercise routines, gradually ramping up the intensity as her fitness improved.

She had no problem getting hot and sweaty in front of me. I confess that, even though she’s my sister, I enjoyed watching her big tits and well-rounded ass bouncing and jiggling in front of me. She commented a couple of times that she was in danger of giving herself a black-eye if her tits bounced any harder, even in her sports bra. I wondered if she noticed that an increasing number of exercises in the routines I created involved her bouncing up and down in front of me. I can’t deny that it was arousing, but I managed to avoid getting an erection by concentrating on the coaching as hard as I could.

She soon started to shape up and look fitter. I have always thought her pretty good-looking for a sister, but getting aroused as I watched her work-out caused conflicting feelings for me. I knew it was wrong to feel turned-on by her, but as she got fitter and worked-out harder, and bounced and jiggled more and more, the urge to get my hands on her body grew stronger and stronger.

One morning we were sat in the living room together. She had showered and changed after her workout and was showing off how much weight she had lost. She was looking good, and I complemented her. She had put a low-cut top on, so when she bent forward in front of me to pick up my cup from where I’d placed it near my feet, I got a close-up view straight down her top. Without thinking, the words just came out of my mouth. “Wow! Nice cleavage.”

She laughed and blushed a little as she stood up. “Sorry, bro. Bad choice of top.”

“Hey, I’m not complaining. I enjoyed the view,” I responded, feeling my own cheeks coloring a little.

“Well, tits are tits I suppose, even if they’re your sister’s,” she said laughing again as she headed for the kitchen.

“True. Only some are a lot nicer than others,” I called after her.

She brought me another coffee, and we carried on chatting, but nothing more was said about me admiring her cleavage.

A few days later, I was round at hers again. We were stood in the kitchen after another work-out, talking as she peeled some potatoes at the sink. She paused to study one. “That’s odd. Come and look at this one. Is it safe to eat?”

I turned and stood half behind her, looking over her shoulder at the funny-colored patches on the potato in her hand. My eyes were immediately drawn to her tits again, in another low-cut top.

“What do you reckon?” she asked.

I was still focused on her tits. “Still an awesome cleavage”.

She giggled. “You’re not supposed to be looking down there. Here, look at the color of this potato. Is it safe to eat?”

I forced my attention away from her. “Just chop off the bad bits. The rest is fine.” I stayed where I was for a moment.

“Do you really think my cleavage is awesome?”

“Of course I do, or I wouldn’t have said it. You must know that anyway. You see it every day.”

“Yeah, but it’s just me. I think they’re too soft and squidgy now.”

“I wouldn’t know,” I replied.

“Have a feel then. Tell me what you think”.

I was surprised by her invitation and hesitated for a moment. Then I stepped fully behind her, put my arms around her waist and raised my hands to cup her tits, squeezing them gently. They were two big heavy handfuls and felt as good as they looked. I guess it should have been just a quick feel, but I carried on kneading them for a few seconds, until she said “Well?”

“They feel amazing to me,” I said, and squeezed them again. “I bet they must get plenty of attention from Tom.”

“I wish!” she said quietly, surprising me again. Even if their sex life wasn’t all ‘swinging from the chandeliers’, surely he took every opportunity to make the most of my sister’s appetising tits? Apparently not.

I became aware that I was still groping and squeezing them, and I felt my cock twitch. I was standing so close to her I felt it nudge her ass. She must have felt it too, surely, but she didn’t react. I quickly stepped away and leaned against the worktop, where I had been stood earlier, willing my cock to settle down.

Later that afternoon as I was leaving, shortly before Tom was due home from work, we hugged and kissed on the cheek as always. Then Dee followed up with a quick little kiss on my lips. “I’m glad you’re back home,” she said.

“Me too,” I replied, and returned the peck on the lips.

As I drove home, my mind was in a whirl. I had groped my sister’s tits at her invitation. I had started to get a hard-on which she must have felt. And now we had just given each other a kiss directly on the lips for the first time ever. What was going on here?

I had to admit that I found myself sexually attracted to my sister, especially since I had played with her tits. Did she feel the same way? She had initiated the contact and hadn’t stopped me feeling her up for way longer than was necessary to answer her question. She must also have felt my cock react and didn’t seem to be the slightest bit shocked or upset. Maybe she was just feeling horny because she wasn’t getting any from Tom, so I shouldn’t take it personally that she enjoyed being groped. It wasn’t about me. Or was it? I was confused. I didn’t know whether to push it to see what happened, or to leave it to Dee to decide what she wanted to do.

By the time I visited her again a few days later, I had decided that I would take my lead from her. I didn’t want to risk damaging our relationship by offending her.

I noticed she was wearing make-up, which she doesn’t normally bother with unless she’s going out somewhere special. She doesn’t even bother when she’s going shopping.

“Are you going out, or just come back?”

“Oh, neither. I just fancied a change,” she said, smiling at me.

“You look good.”

“Thank you,” she said, and her smile broadened.

A while later our conversation turned to our relationships. Dee brought it up. “You know I mentioned the other day that I don’t get much attention from Tom?”

I nodded, waiting to see where this was going.

“Well, I’ve been wondering. How are things between you and Lynne? Are you two still as active as you would like to be?”

I thought about it. The honest answer was probably ‘yes, just about’, but instead I heard myself saying “No, not really. Why?”

“It’s frustrating, isn’t it?”

I nodded again.

“Do you ever, you know, when you get a bit too frustrated?” she asked, gesturing towards my groin.

I could feel myself blushing a little. My sister was asking me about my masturbation habits! “Err… well yeah, of course. Sometimes.” I hesitated. “What about you?”

Dee was blushing too. She nodded. “Yeah, sometimes. But it’s never as good as when someone else does it for you, is it?”

We both laughed a little. This was embarrassing but exhilarating at the same time. Where was this going?

“No, it would be good to have a stand-in to turn to for some relief sometimes, wouldn’t it?” I suggested.

We both laughed again.

“Yeah, good idea” she said. “Who would be your stand-in?”

Part of me wanted to say it would be her to see how she reacted, but I was still wary of pushing this too far. This had to be just meaningless chatter for her, didn’t it? “I don’t know. I’ve never thought about it. As strange as it may seem, I’ve never had this conversation with anyone before.”

“Well, think now.” She was pushing me, but still laughing.

“I guess it would have to be someone I fancied, obviously.”

She nodded in agreement.

I continued. “Someone I could trust not to want or expect anything more than just sex…”

“…Oh, it’s full blown sex now is it? Not just a fumble?”

“Well things inevitably lead from one thing to another, don’t they?”

She was nodding again.

“I would have to be able to trust her to keep it a secret, of course…” I trailed off, not able to think of anything else.

“Do you have anyone particular in mind?”

Shit. This was getting intense. Fortunately, my pausing to think prompted her to speak again.

“What would she look like, ideally?”

That gave me an idea. I decided to describe Dee, in general terms. “Well, she would be a little bit younger than me, and still very good-looking. Blonde. Quite short. Curvy, with nice big soft tits, and a nice round ass.”

She laughed. “You could be describing me!”

I laughed with her. “Yeah, I could be, couldn’t I! What about you? Anyone in mind to sort you out?”

She shrugged. “Dunno.”

“What would he look like?” I was not disappointed with her equally vague deion. “You could be describing me,” I said, grinning at her.

“Yeah,” was all she said, smiling back.

I decided to take the plunge. “Maybe we could audition for the parts, to relieve each other’s frustrations when needed. I certainly enjoyed feeling your tits the other day.”

“Yeah, I noticed. So did I.”

So she had felt my cock twitch against her ass and enjoyed me groping her. I got up from my chair and sat sideways next to her on the sofa, facing towards her. We both smiled nervously. I reached out and felt one tit, then the other. She didn’t react. I did it again, taking my time this time, gently squeezing them, uncertain whether I felt her nipples beginning to stiffen through her bra and blouse. My cock definitely stiffened a little. After a couple of minutes, I asked if I could undo the buttons on her blouse, and she nodded.

I slipped my hand inside her bra. Her nipple was quite big, and already hard as stone. I heard her breathing change. My cock was getting stiffer in my jeans. She reached out and touched it. She rubbed it gently and it grew even more.

I began to take her blouse off and she leaned forward to let me, then reached behind her to unfasten her bra. I got up and straddled her thighs, facing her.

Her tits were big and heavy, with large dark areolae, the skin already puckered in arousal. Her nipples were large and stiff.

“Wow!” I breathed. She looked up at me and smiled.

I cupped her tits with both hands, squeezing them firmly and pinching her nipples between my fingers and thumbs. She closed her eyes and moaned softly.

“Play with me,” I told her.

She unzipped and unfastened my jeans, and reached into my briefs to release my semi-erect cock. Gripping it firmly, she stroked up and down slowly. It was my turn to groan, as she soon got me fully hard. She sped up, jacking me faster as I continued to squeeze her tits, pinching and tugging her nipples hard enough to make her moan in painful pleasure.

I could barely believe this was happening. I was massaging my own sister’s tits while she was jacking me off, and the whole experience was amazing. I knew we shouldn’t be doing it, but I didn’t want it to stop.

I felt my orgasm approaching far too quickly and slid onto the floor between her feet, so that she had to let go of me. She raised herself up off the sofa so I could push her skirt up around her waist, then she relaxed again, spreading her knees wider. I could see her pants were damp at the crotch. I let my fingers trace a line up her inner thigh, coming to rest against the damp patch. As I rubbed gently, she sighed. I reach up to remove her pants and again she raised herself up to help me.

I was now looking at my sister’s naked, clean-shaven pussy. The lips were moistened and slightly parted. I let two of my fingers gently explore between the folds, and she moaned softly as they probed and then penetrated her. She was already wet inside. Crooking my fingertips to apply a little pressure to her G-spot, I began sliding my fingers in and out of her, slowly at first, but gradually gathering pace. With the fingertips of my other hand I began rubbing her clit in gentle circles, timing the circling motion with the rhythm of my penetrations. All the time I was watching her expression. Her eyes were closed, and she was moaning softly, her hands resting limply beside her.

As I increased my pace, my sister’s breathing became more ragged. She began squeezing her tits and tugging on her nipples with both hands, watching me now as she moaned and writhed with pleasure. I increased the pace of my finger-thrusts and caresses again, and her moans grew louder before turning into cries of ecstasy as her hips twitched and rolled and she came on my fingers. I felt her pussy muscles pulsing and spasming against my fingers, trying to pull them deeper inside her, coating them with her juices as she came and came, until she begged me to stop.

I withdrew my fingers and licked them, as my sister smiled down at me. I liked the taste of her.

“Thank you,” she whispered.

“Now it’s my turn,” I said, feeling a little breathless. She nodded and smiled again.

Getting up off the floor, I removed my jeans and briefs, and straddled her again. My cock was still semi-hard. It twitched as soon as she touched it. A few strokes later it was so hard it was almost painful.

“Your cock’s bigger than Tom’s. Thicker, too.”

She sped up again, watching herself jacking me off. I watched her too, admiring her tits as they jiggled in front of me. I revelled in the sight and sensations of her hand working my cock into a frenzy. A few minutes later the tell-tale throbbing began.

“I’m going to cum sis,” I warned her, and she went even faster, her hand almost a blur. God, it felt amazing. Seconds later I felt my orgasm erupting inside me. Then it exploded up through my cock.

“Oh fuck, Deborah! I’m cumming!” I grunted loudly, as the first powerful spurt hit her full in the face. Her head jerked back in shock, and the second spurt caught her in her open mouth, and down her chin and throat. Several more thick ropey spurts sprayed across her chest and tits, dripping off her nipples in sticky strings. When I was done, she squeezed the base of my shaft and drew her thumb up the full length of the underside, pushing out the last few drops of my cum. She caught the cum on her thumb and popped it straight in her mouth, sucking it clean. I sat and watched her as she cleaned herself as best she could with her fingers, licking them clean and swallowing each load.

“Do you always make this much cum, or is it just ‘cos you got jacked off by your sister?”

“Oh, it’s definitely you jacking me off that made me cum this much,” I said, laughing. “That was awesome. You easily passed your audition sis, the job’s yours!”

“So did, you, bro! So did you.”

“Do you think you might need your frustrations relieving again sometime soon?” I asked her.

“Definitely!”

“Is tomorrow soon enough?”

She laughed. “Hell, yes! I don’t want to wait any longer than that.”

Chapter Two

The following day, as I made my way round to Dee’s, my head was in a whirl again. What happened yesterday was incredible, and I was looking forward to taking things further today, but how would she be feeling? Would she be feeling guilty now, and regretting what we’d done? After all, she had just cheated on her boyfriend with her brother. Okay we hadn’t had sex, but we had gotten each other off. I had fingered her until she came, and she had jacked me off until I came all over her. I don’t know if that technically counted as incest, but it was still wrong, and yet it didn’t feel wrong when it was happening.

But the first thing on the agenda was coaching her through her work-out, which we could do anyway unless she couldn’t bare to look at me today. After that, we would just have to see what happened.

I knocked on the door and when she opened it she was already in her training kit, including the sports bra she wore to try to maintain at least some control over her chest as she jumped around. She said ‘Hi’ breezily, with a smile on her face but turned away immediately, towards the garage, where she works out.

I wasn’t sure what to make of that. Was she just focused on making sure she got her workout done first, or had she decided that anything more was a bad idea. I couldn’t read her.

We got straight into her routine and I worked her hard, so she was soon panting and sweating. It was fun watching her tits bouncing around, as always, but it was tinged with uncertainty this time. I decided I had to test the water.

She was doing push-ups, with her knees on the floor, and I was knelt in front of her, counting reps and encouraging her.

“You know, if you were working out with a low-cut top on, watching you do those push-ups would make me cum in my pants,” I said nervously.

She stopped and sniggered. “If I worked out in a low-cut top, these babies would knock me out cold. Now shut up and let me concentrate,” she said with a grin on her face. “And don’t even think about cumming in your pants. You need to save that up for later!”

Phew! What a relief! We finished off her routine with some slow jumping jacks to cool down, which got my cock pretty worked up as I enjoyed watching her tits bouncing up and down. She watched me watching them, and when we were done she said “I’m going for a shower. Want to join me?”

“What do you think,” I replied, already stripping off my shirt.

In the bathroom, I was naked first, but sat on the edge of the bathtub watching her undress. My cock grew stiffer by the second and was pointing skyward by the time she was also naked. She stepped into the shower but left the door open as she turned on the water. I watched as she let the water cascade over her body, admiring her curves as she ran her fingers through her wet hair.

“Don’t be tugging on that too hard just yet,” she said looking at my erect cock. I hadn’t realised, but I was gently stroking myself as I watched her.

I stepped into the shower behind her and she turned to face me. We hadn’t even kissed properly yet. As she stepped forward my cock poked her in the stomach. She laughed and pressed her body against mine, wrapping her arms around my neck, pulling me down to her. Our lips met, and we kissed long and deep. Our tongues explored each other’s mouths as my hands roamed across her back and then down to her ass, squeezing her cheeks and pulling her into me. M cock twitched against her stomach and she pulled away, giggling.

“He’s keen.”

“Can you blame him?”

I reached for the soap, lathered my hands and began washing her body, taking my time to explore every inch of her for the first time. She held my cock, stroking it back and forth gently, as I soaped up and massaged her tits. Her nipples grew into hard pebbles under my palms and I leaned down to suck first one and then the other.

I spent the next several minutes sucking and tugging on her nipples as she ran her fingers through my hair, cooing and moaning softly. Then I let one hand travel down her stomach and between her thighs. One finger slid easily into her. She was already very wet. I massaged her G-spot with my fingertip while the heel of my thumb rubbed rhythmically against her clit as I continued to suck on one of her nipples. When she began breathing harder and moaning louder I knew she was getting close. I dropped to my knees and ran my tongue over her clit and between her lips, feeling her body shudder in delight at my touch.

I began squeezing and kneading her ass cheeks, letting my fingers drift down the cleft between them, teasing and caressing her tight little hole, but not yet pushing inside, as I eagerly tongued her swollen clit.

Her moans grew louder, and her body trembled as her orgasm built, then she cried out and jerked her hips as it hit her full force. I pushed one finger into her ass and sucked hard on her clit. She screamed in pleasure and collapsed against the wall, her whole body shaking and convulsing, with my mouth firmly clamped on her pussy, licking and sucking her, and one finger still in her ass, until her legs eventually gave way and she sank down on top of me.

I held her in my arms, kissing her gently until she had recovered. When I stood up again, she stayed on her knees, my iron-hard cock just inches from her face. She reached up and caressed it with one hand as she massaged my balls with the other. She leaned in and planted a line of kisses all the way up the underside of the shaft from the base to the tip. Without pausing she took the head straight into her mouth and sucked hard. I shuddered and groaned deeply.

With her hands on my thighs she bobbed her head rhythmically, taking a little more of my swollen shaft into her mouth each time, until she was deep-throating and gagging on me. Then her mouth retreated all the way back to the head and she sucked it vigorously as she began jacking me off with one hand.

It felt so exquisite I couldn’t take any more. I yelled out that I was cumming and she sucked harder and jacked me faster. My orgasm hit me like a train as I exploded in my sister’s mouth, and she never missed a beat, swallowing it all down as I pumped load after load of hot sticky cum down her throat.

Once I was spent, Dee reached for the soap and lovingly washed my cock and balls, and then rose to her feet, washing the rest of my body with a satisfied smile on her face.

“I never dreamed we’d be doing this together bro,” she whispered. “But I’m glad we are.”

“Me too sis,” I whispered back, and pulled her into a long lingering kiss. I knew that next time I would fuck her.

Chapter Three

Two days later I was driving to Dee’s with a hard-on. She was supposed to work-out, with me coaching her through her routine, but the way I was feeling I just wanted to rip her clothes off and finally fuck her the moment I walked through the door.

If it went as I hoped, this would be my third sexual encounter with my sister, and I no longer felt very guilty about it. We were both in relationships – I was married – so we obviously didn’t want to get caught, but I no longer felt bad about getting intimate with her. It just felt so natural now, and I hoped this would be the day that we finally got to fuck each other’s brains out for the first time.

As Dee opened the front door I was just about to sweep her up into my arms when the look on her face stopped me.

“Hi,” she said airily. “I’ve just got to get changed. Tom’s in the kitchen if you want to say hello.”

Shit. My hard-on wilted immediately, and I hoped it would quickly retreat enough for Tom not to notice. That would be awkward to explain.

“Hi Tom, no work today?” I asked as I walked into the kitchen.

“No. There’s a gear-shift problem with my truck so they’ve given me the day off while they fix it.”

“Nice. You just gonna hang out and chill, then?”

“Nah. I just organised a fishing trip up to the lake with a pal. I’ll be gone before Dee’s finished her workout.”

“Cool,” I said, thinking ‘thank fuck for that!’

I wandered into the garage to wait for Dee. She joined me a few minutes later, closing the door behind her and giving me a quick kiss.

“That was a close call,” I whispered. “I was gonna rip your clothes off and fuck you in the hallway.”

“I would have let you too, but we know we’ve got to be careful now. We can’t just assume it’s safe to do or say what we want.”

Halfway through the routine, Tom stuck his head round the door to say goodbye. I casually clasped my hands in front of my crotch to hide the bulge. He’d be gone all day, he said. I cheered inside. I wished him luck. Dee grunted at him between squat thrusts.

I was tempted to stop the routine and jump her bones right away but decided to tease myself with the wait. Thinking about what might happen later was making me seriously horny. When Dee had finished the last of her cooling-down jumping jacks she sank to the floor and laid on her back, still breathing hard. Sweat glistened on her red face.

“That was a hard one!” she exclaimed.

“Your telling me,” I replied massaging my partial erection through my jeans, which made her laugh. “Don’t get up,” I said stripping off as quickly as I could.

She sat up, pulled off her top and removed her sports bra, letting her gorgeous big tits swing free. “Oh, that feels so much better,” she sighed.

“Looks better too,” I added.

She laid back and squealed as her back touched the cold matting.

“Roll over,” I suggested. “See if it makes your nips hard.” I was already stroking my hard cock as I watched her.

She giggled and turned over, immediately squealing again as her tits made contact with the floor. After a few moments she rolled onto her back again. We both looked down. Yep, both of her nipples were rock hard. We laughed as I kneeled beside her and leaned forward to suck on them.

I had already learned that Dee loves to have her nipples sucked hard. It really turns her on and makes her pussy soaking wet. She wriggled out of her training pants and her hands quickly found her pussy. She pushed two fingers inside herself and she began stroking her clit at the same time. In no time she was cumming hard and very loudly as I continued to suck and pinch her swollen nipples.

She pushed my head away and turned towards me, taking my cock in her mouth. I laid on my back and let her get to work on me. I lasted a lot longer this time, as she licked, slurped and sucked, massaging my balls as her tongue swirled expertly around my throbbing swollen cockhead. Then she licked and sucked my balls as she jacked my cock.

The sensations were building, and I knew I was getting close to cumming, but I wanted to fuck her first. I was just about to stop her when we heard the phone ring in the hallway. Shit!

“Dammit!” she complained. “That could be the school about the kids. I have to get it.” I nodded and followed her into the hall. She looked comical, standing there butt-naked except for her little white ankle socks, talking to a teacher on the phone. I stood leaning against the wall in front of her, slowly jacking off as I looked her up and down. She smirked and turned away, trying not to laugh.

Dee had two girls, both of school age, Rachel and Rhian. She had had a hysterectomy shortly after Rhian was born, so I knew I couldn’t get her pregnant. I was relieved I didn’t have to wear a condom. I wanted to fuck my sister bareback. I wanted to cum inside her. When the call from the teacher ended, Dee put the phone down and turned to me.

“Rhian’s not well, but they don’t think it’s serious. They’re not sending her home yet. They’ll just keep an eye on her and let me know if she gets any worse.”

“We’d better not waste any time then,” I replied. I took her hand and led her upstairs to her bedroom.

“I’m still all hot and sweaty,” she said, trying to pull me to the bathroom.

“So what? It’s time I got hot and sweaty too.”

I pulled her into the bedroom, flung her onto the bed and dived on top of her. We rolled around, kissing, stroking, squeezing and caressing before I went down on her, pushing her legs apart and lapping up the juices that were already flowing freely from her waiting pussy. Then I shifted my attention to her clit, licking and sucking enthusiastically as I poked her pussy with two fingers. When I sensed she was getting close to her second orgasm I lifted her legs up over my shoulders and tongued-fucked her pussy as deep as I could, stroking her clit rapidly with my fingertips until she came again, long and loud.

She was breathless, but I couldn’t wait any longer. We gazed into each other’s eyes as I held her pussy lips apart and guided my cock between them. I pushed gently. Her slick lips offered no resistance and the head of my cock slipped in easily. Then I pushed again and a moment later I was fully inside her. We kissed as I laid motionless on top of her.

It had finally happened! My rock-hard cock was buried to the hilt, deep inside my sister’s pussy!

I began to ride her slowly, just rolling my hips, and Dee moved with me, grinding our pubic mounds together. She felt incredible. She was so hot and wet, and she used her inner muscles to massage my cock as we took our time, gradually increasing the pace, grinding our hips together in perfect harmony. She locked her legs around me and we continued kissing as I massaged her tits and nipples. We carried on like that for some time until Dee began crying out “Oh, God! I’m gonna cum again! You’re gonna make me cum! God! Fuck! I’m cumming on your cock! Fuuuck!”

She squealed and squirmed beneath me and I continued grinding into her as she came continuously for maybe a minute, until she couldn’t take it any longer. She was panting when she was done.

“I can’t wait any longer, Debs. I’ve got to cum in you now.”

“God, yes! Cum in me as deep as you can.”

I grabbed her wrists and pinned them to the pillow either side of her head. I lifted myself on to my knees, spread wide either side of her hips, which pushed Dee’s knees up towards her chest. I knew I could get some real purchase in this position.

“I’m gonna fuck you so damn hard, Deborah!” I almost growled at her. “But don’t let me hurt you.”

She shook her head, looking into my eyes.

I pulled out almost all the way, then slammed my cock back into her as hard as I could, forcing the air out of Dee’s lungs in a harsh grunt as her tits bounced crazily beneath me. She closed her eyes. I paused, then did it again. And again. And again. I gradually increased my speed until I was ramming her as hard and as fast as I could, slamming my cock into her sopping wet pussy. Dee was moaning and crying out continuously as I drove myself into her, but her cries were forced out of her in a series of breathless grunts, as I rammed my cock home over and over again.

I was panting hard when she cried out that she was cumming again, and that tipped me over the edge. I felt the pressure build, and the throbbing accelerated rapidly. I slammed my cock into her pussy one last time, holding it hilt-deep inside her as my orgasm exploded into her. I growled her name as I pumped load after load of cum deep into my sister’s hot wet tight little pussy.

When I was spent I rolled off her onto my back, panting hard and sweating from the exertion. Dee was panting too. She rolled over and cuddled into me, and we held each other until I felt myself drifting off to sleep. We couldn’t let Tom walk in and catch us like this, so I shook myself awake and went for a shower. Dee followed me through, and we washed each other clean.

The phone rang as we dried off, and I went down to the garage to gather our clothes. By the time I had dressed, Dee was dressed in respectable-mommy clothes and had her car keys in her hand. “I need to collect the girls from school. They’re both unwell now. I hope it’s nothing serious.”

“So do I Debs,” I said. “I won’t be able to come around and fuck you every day if they’re off sick.”

“Now don’t be selfish,” she chided me, laughing, but I knew she was thinking the same thing.

“Let me know,” I asked her as we headed for our cars.

Chapter Four

Dee’s girls were sick and off school for a whole week, which meant I couldn’t get my hands on my sister’s hot body for the whole of that time, and I was getting desperate. Especially as I continued to call round to coach her through her workouts, so she was bouncing around getting all hot and sweaty in front of me, and I was getting as horny as hell, but had to keep my distance in case one of the kids walked in. It was torture! Lynne didn’t complain though. She got a good pounding every night as I released my pent-up frustrations inside her.

Towards the end of the week we got an unexpected break. Tom had another involuntary day off work when his truck broke down again. When he walked into the house, Dee promptly put him on child-minding duty, so she could ‘go shopping’.

She knew I should be home at that time of day, and that my wife should be at work. As soon as she had driven out of sight of her house, she pulled over and phoned me to confirm the coast was clear. It was.

A short while later she rang my doorbell. When I opened it, I said “Hi Dee. Lynne’s at work but come on in.”

Dee knew she could relax then, and if my nosy neighbour was listening behind the hedge he wouldn’t get suspicious. She closed the door and followed me up the passage to the kitchen.

“I’ll go and make coffee,” I said.

“Don’t bother.” She grabbed me around the waist from behind, stopping me in my tracks, pulled my zip down and reached into my jeans to grab my cock. “I need this bad boy right now,” she declared, pleased that I was already starting to grow and stiffen in her hand.

I turned to face her, and she dropped straight to her knees, taking my cock in her mouth. With a few swift sucks and bobs I was rock hard. Satisfied with her progress she stood up, and led me by my cock up the stairs to our spare room, both of us giggling like teenagers. We quickly undressed, and Dee made me sit on the edge of the bed. She took a pillow and knelt on it between my legs. I leaned back on my elbows to relax and enjoy her amazing blowjob skills. I was not disappointed.

Using her tongue, lips, teeth and fingers, and plenty of suction, she took me to the brink of orgasm about half a dozen times, letting me cool down before edging me again and again. All the while I was aware that she was playing with her pussy and clit. By the time she had gotten herself off on her own long and noisy orgasm, my balls were fit to explode. They felt full and heavy, and they ached.

Once she was confident I had cooled down enough not to cum too soon, she straddled me, facing me. Reaching down between her legs she guided the tip of my cock to her pussy lips, nudging the head between them, then quickly sat down taking my full length inside her in one swift movement. We both groaned aloud in satisfaction. Sitting up straight, she took my hands and brought them up to her lovely big tits, and I happily played with them, squeezing them and tugging on her nipples as she began to role her hips.

She took her time riding me. We both wanted to make the most of this opportunity after having missed out for so long. She ground herself down on my cock, rolling her hips backward and forward, and around in circles, using her pussy muscles to massage my cock, bringing maximum pleasure to both of us, but keeping her pace just slow enough to prevent either of us cumming.

She rode me like that for as long as she could hold off, but eventually her need got the better of her. She leaned forward, putting her hands either side of my head, so that her big tits hung heavily above my chest, swaying gently as she began to fuck me again. This time I just enjoyed watching her tits swaying and jiggling as she rode me harder and faster, grinding her pubic bone against mine, focusing the friction on her clit until she brought herself to a shuddering second orgasm, screaming loudly, “Oh fuck, oh fuck” as the orgasm raged through her trembling body. Then she climbed off me and collapsed face down on the bed beside me.

I moved around between her legs, spreading them wider, and eased the head of my cock back inside her now soaking wet pussy. Supporting my weight on straight arms I began to fuck her, looking down at her body rocking beneath me every time I thrust into her.

Dee had a lovely sexy curvy ass. Adjusting my position to support my weight on one arm I freed up one hand to stroke and squeeze her cheeks. I parted her ass and looked down at her tight little butthole. I knew straight away I wanted to fuck it, but I didn’t know if she would let me.

As I continued ploughing into her, I licked my thumb, getting it as wet as I could. Stroking and squeezing her cheeks again I ran my thumb down the cleft between them, letting it brush against her hole. She didn’t complain. I began running my thumb up and down the full length of her cleft in rhythm with my thrusts, each time rubbing it over her hole and back again, pressing ever so slightly each time. She still didn’t complain. She just lay there, enjoying me fucking her.

I licked my thumb again and I could taste her ass on it. It wasn’t unpleasant. I got my thumb well covered in saliva and this time just focused on rubbing her hole gently in rhythm with my fucking. Then I gently pushed. She didn’t offer any resistance. I pushed again, and this time the tip of my thumb slipped into her ass. She moaned softly. I pushed it in as deep as it would go, to another soft moan.

Then I thumb-fucked her ass as my cock fucked her pussy, and she moaned with pleasure. “How did you know I love having my ass fucked?” she mumbled into the bedclothes. “Have you got any lube?”

Dammit! I knew that I didn’t.

“Next time then, big boy. I’m getting too dry already. Just keep fucking my pussy and pretend it’s in my ass.”

I withdrew my thumb, as I didn’t want to hurt her, and fucked her as vigorously as I could, looking down at her quivering ass and imagining my cock was ploughing in between those delicious cheeks. I pulled out just as I was about to cum. Holding her cheeks apart, I blasted my load over her asshole, and up her back.

As we laid together recovering, I asked her if she had any lube at home. She was sure she had some at the back of a drawer somewhere and promised it would be ready waiting for us.

A couple of days later, Tom was at work and her kids were back at school. I made sure I was free to call round and coach Dee through another fitness routine. She saw me arrive and was waiting at the door for me when I walked in. She was in her dressing gown.

“Not ready yet?” I asked as she put her arms round my neck, standing on her toes to kiss me.

“I’m almost ready for some fun. Look…”

She unfastened the belt around her waist and let her dressing gown fall open. She was naked.

“I just need a quick shower. Come and join me.”

She took my hand and led me upstairs. In the shower, we washed each other, enjoying each other’s bodies, and I was soon erect. After spending some time sucking her nipples I kneeled in front of her and began tonguing her clit. She leaned back against the tiled wall moaning in pleasure. I slid two fingers into her pussy and massaged her G-spot as I continued to lick and suck her swollen clit. She was squeezing her tits and tugging on her nipples and I knew it wouldn’t be long before she came.

Her moaning grew louder, and her hips began to buck and roll. She grabbed my head, grinding herself into my face and cried out as she came on my fingers and tongue. Her whole body shook as ecstatic tremors rippled through her, and then she slid slowly down the wall and sat on the floor in front of me.

I kissed her and stood up. Spreading my legs, I adjusted my height until my hard cock was pointing straight into Dee’s mouth. I leaned forward, and she sucked the tip between her lips. I rocked my hips and began fucking my sister’s face, just letting her take an inch in and out. Then two inches, and then three, and then more. I was soon deep-throating her, and she was gagging as my cock pushed its way right down her throat. With Dee’s head against the wall she had no escape. I was in total control.

A few quick full-depth thrusts and then I withdrew, so she didn’t suffocate. Then I began again, a few strokes with just an inch of penetration, then two, then three, feeding her more and more until I was plunging my full length into her gagging throat again. I repeated the pattern over and over, stopping only when my cock was throbbing like crazy and I was on the verge of cumming straight down her throat.

I pulled her to her feet and kissed her fiercely, then span her round.

“Put your hands on the wall and stick your ass out,” I ordered her.

She did as she was told. I guided my cock into her hot wet pussy, held her by the waist and fucked her hard. Bracing against the wall she thrust her hips back at me with perfect timing, our bodies slapping together beneath the shower spray. I reached up to play with her tits as we continued to fuck.

We moved closer to the wall so that she could rest her head on one forearm against the tiles. That freed her other hand, and she reached between her legs and began massaging my balls. Then she focused on herself, stroking her clit until she came on my cock. I held her up as her legs turned to jelly and her juices ran down her thighs, mingling with the warm water still cascading over our bodies.

I led her through to her bedroom and saw the bottle of lube in the middle of the bed. I told her to get on the bed on her knees, and she thrust her sexy well-rounded ass in the air with her pussy and asshole fully on display. I got on my knees and I began licking her clit and her pussy, pushing my tongue as deep inside as I could reach. Then I moved up to her ass, licking her tight little hole, slowly at first, and then with rapid flickers, as she cooed with pleasure. I stood up and eased my cock between her pussy lips, stroking her asshole with my thumb as I sank my cock deep into her wet pussy.

I poured plenty of lube on my thumb and began stroking her hole as I fucked her, gently easing more and more of my thumb into her ass. I was soon thumb -fucking her ass in time with my cock fucking her pussy.

Dee groaned. “Mmm, take your thumb out. Fuck my ass with your big hard cock. I need that cock in my ass.”

I squirted lube over her hole, and then all over my cock, making sure it was well covered. Then I nudged the head of my cock up against her ass. Holding her waist, I pulled her onto me as I pushed my hips forward. I felt resistance at first, but suddenly it gave way and my cockhead pushed through her tight ring.

We both groaned loudly. I pushed again, slowly sliding my cock deeper and deeper into my sister’s waiting ass until I had hilted her. I withdrew to the head, applied some more lube to my glistening shaft, and then slowly pushed in again, and then again, getting quicker every time.

Dee began pushing back against me as I fucked her ass faster and harder. She stroked her clit and urged me on. “Ooh yeah. Fuck my ass. Fuck it harder. Cum in my ass, bro. Cum deep inside my ass!”

I knew we were both approaching climax. I fucked her as hard and as fast as I could, as she frantically rubbed her clit until we both cried out together. Dee hit her third orgasm just as I unloaded several thick streams of hot cum deep into her ass.

It was unreal. I was cumming in my sister’s ass, and it felt awesome. I kept fucking her until I was I totally drained, and we collapsed onto the bed together, panting hard.

When she got her breath back, she looked up at me and smiled. “I hope you’ve got an extra-hard work-out planned today, to punish your wicked little sister for being so naughty.”

I laughed. “Oh yeah. It’s going to be even harder than my cock has just been. If that’s possible. Shit, you’re hot, sis.”

She snuggled into me. “I don’t ever want to stop doing this with you.”

“Well, as long as we’re careful not to get caught, we don’t need to stop.”

“Getting caught is what I’m worried about. I can’t begin to imagine the fall-out from that.”

“Yeah, I know. But that’s where being brother and sister is an advantage. Unless we get caught with me literally balls-deep inside you, nobody is going to think for one moment there’s anything going on between us. It’s the perfect cover.”

She smiled, and visibly relaxed. “Yeah, you’re right. Good! Come on then bro,” she said, getting up off the bed. “You’ve worked my ass hard with your cock, so now you can work my ass hard in the garage, and when you’re done with me I’ll let you empty your balls in me again. Anywhere you like.”

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