The next morning I woke up naked in my bed. My organ was still wet from the sex with my sister… Or had that been Cynthia, her best friend. Oh, man I was tired, I couldn’t think straight, I wasn’t sure who it was right now but there was proof in the sheets that something has happened. Cum stains all over and a little of her maiden-blood stains. I’d have to wash my sheets today.
I heard some girls laughing in the hall and decided I better get up and see what’s going on in the house. Had Cynthia told my sister we boned and pretended that we were her and I banging eachother’s brains out? Why did I like it so much?
No sooner had I climbed out of bed the door banged open! I threw the blanket over the my stained sheets. There stood my sister, Aidan.
“Oh shit!” I said. Behind Aida stood Cynthia. She told my sister, I’m so sick and fucked up.

“Ha, now we’re even you pervert!” Aida said and walked out. She didn’t even close the door. Cynthia winked then left laughing with my sister. “Did you see his face?”
“I wasn’t looking there.” Cynthia joked with my sister. They both laughed harder. I saw my sister playfully push Cynthia.
“Stop it, that’s my brother, nasty!” Aida said said as they walked out of ear shot.

I quickly closed the door and pulled my gym shorts and jersey shirt on. I gathered up some clothes and tried to wrap them around my sheets. Laundry first, if I’m lucky mom and dad will be at work all day and I’ll have washed all evidence of last night away.

My sister looked at me weird, “what are you doing?”
“Laundry, duh”
“Yeah but, mom does your laundry” Aida said getting up. “What are you hiding?”
She was trying to pull my clothes from my hands prying to see what was hidden in them.
“He probably has a wet dream,” Cynthia said. “You did give him a nice show last night.”
I glared at her. Ouch, too close to what really happened. But it worked.
“Ew, that’s sick Cynthia! What’s wrong with you today?” Cynthia just laughed at her. My sister forgot about my laundry and I slipped to the wash room. I was shoving clothes in when I heard a noise behind me. I jumped and spun around.
Cynthia climbed into my arms and began to kiss me. “You sister’s in the bathroom. Let me see how you feel this morning.” She said reaching into my shorts stroking my limp tool. “Don’t worry, Aida can take care of you.”
“What do you…” I started to ask.
She knelt down In front of me and put my hardening manhood into her mouth. I closed my eyes. Oh she was getting me going good. My now fully erect staff popped out of her mouth.
“Oh you are big, brother” Cynthia said in my sister’s voice.
And with that’s she sucked me back into her mouth. She was bobbing vigorously and taking more in her this time then last night. Her hands lay nearly motionless holding the base of my shaft. Still not the best blowjob ever but better then last night.
I looked down at her and couldn’t see her face. From this angle it looked like my sister was devouring my wood.
“Oh Aida I’m going to cum! Lick my balls,” I pleaded.
My cock popped out of her mouth again. “Anything for my Jose.” Cynthia said, in her best imitation of my sister. As she complied, licking my sack. She even began slowly sliding her impassive hands up and down my shaft. She could read my body better than me. Cynthia licked her way up my sack, then slowly up my pole.

“Cynthia! Where are you?” My sister’s voice called out. She sounded close.

Cynthia sucked my tip into her mouth just as my first spirt shot from my hot rod. She coughed and slurped my burning cum.

“Mmm thanks, Jose” Cynthia said. Then called to my sister, “I’m in here, Aida.”

I pulled up my shorts as quick as I could. Just in time, my sister walked in.

“I was just pumping your brother for information, trying to see what he was hiding from you,” Cynthia said, she gave me a dirty grin as she walked out with Aida.

What the hell was Cynthia playing at. Did she want is to get caught? Why was she so cool pretending to be my sister. Why did I like that?

I tried to hide in my room the rest of the day. Damn if this was the one day my friends wouldn’t call me back. I remembered my sheets and went to put them in the dryer. On my way I looked out the window to see my sister dripping wet in her bathing suit. A small bikini from last year when she was an A-cup. The bottoms fit her really tight too since her ass had rounded out more this summer too. She wore them here at the house when there was no one around. Cynthia didn’t count they do everything together.
I felt my member twitch at the sight. Then I saw Cynthia jump in the water. She was wearing my sister’s other old bathing suit. For her, it fit almost perfect. The top was working overtime like my sister’s but the bottom was just right.
I broke away before they saw me in the window watching. Pulled my sheets and clothes out of the wash and shoved them into the dryer. I grabbed a snack and b-lined it to my room. No peek outside this time.
After I ate I couldn’t get the picture of the girls out of my head. Well nothing for it but to beat off. So I can relax and enjoy my video games. I pulled off my shorts and closed my eyes. Grabbed my sword with both hands and began choking it.
I heard the shower start and a tap at my door. Before I could move it opened and in popped Cynthia.

“Oh looks like I’m just in time.”
She was still wearing my sister’s bathing suit. She sat on my lap and took my rod from my hands. She began to rub me against her bikini stroking my tool.

“I’m close,” I whispered.

She used one hand to pull my sister’s bikini aside revealing her treasure. She stroked me right into her tight 15 year old slot. “Put it all in me, Jose,” she said, using my sister’s voice.
I grunted and moaned as I drained my seed into her little sweet spot.
“Oh, yes. That’s good big brother”
“Please stop, I can’t stop this,” I pleaded. I was still hard even after that load. I don’t know why she seemed to enjoy pretending to be my sister. It was even more real since she was wearing my sister’s clothes. “It’s not right.”
“I know, but I want you and you want me to be her,” Cynthia said. She sounded a little sad.
“I enjoy you, You” I emphasized.
“But you enjoy her more” she insisted. “Look,” she indicated my softening penis.
She got up and turned around. She sat back down on my lap and leaned forward. Damn what a nice view of her ass. Not as round as my sister’s but very tight and still had a nice shape. Her dark hair spilled down her back just like my sister’s after she swam in the pool.
Her ass began to rub and my cock was already hard. When had that happened?
“Oh that feels so good, Aida.” I said without thinking. “Cynthia, I mean Cynthia.”
“Shh, it’s ok Jose” Cynthia said in Aida’s voice.

In no time I was ready to blow another load in her. “Oh I’m close Aida”.
“Cum on my ass, you can’t get your little sister pregnant” she said.
She lifted herself off me just as my spunk shot out onto my little sister’s bikini bottoms. I sprayed the second rope on her back as I pulled her hair and reached around to rub her tits.

“Cynthia! Damn it where are you?” Aida called out from the other side of the house.

She got up fixed her bathing suit. I pulled my shorts back on.

“It’s ok, I enjoy it too, I’m not sure why, is that weird?” She asked me.

Before I could answer, my sister banged open the door. “Here you are,” she seemed shocked. “What…”

“Well, about time I’ve been dying for a shower and you took forever!” Cynthia shouted at my sister. “I was so bored I was watching him play games” she really sounded pissed to be in my room.

I looked back at the screen and saw my character had died. Who knows how long ago? “Ah damn sis you got me killed”

“Sorry, I thought… I tried to be fast. Go ahead and shower I’ll be in my room.”

True to her words my sister went to her room. Cynthia went to the bathroom, I heard the water start.

I remembered my sheets again, damn. I got up and went to get them. On the way I noticed the bathroom door partially open. I went in.

“Took you long enough to get it.” Cynthia said. She was nude. I wasn’t sure why I had come in in the first place. My dick was so sore from all the fucking and my balls were so drained. But there she was naked. I closed the door. She sat on the sink and opened her legs.

“Please lick my little pussy big brother,” Cynthia pleaded. She looked wantonly at me.
I knelt down in front of her and her legs wrapped around my neck and back. Pulling me to her sweet pie. I’ve never gone down on a girl and never seen a pussy this close up. Hers was pink and looked soft. I slowly licked the entire slit.
“Mmm, yeah”

So she liked that? I licked more, as I licked her slit began to open a little. I licked into the opening.

“Oh my god, don’t stop, Jose”

I licked her opening more, I felt a knot near the top of the slit. I don’t think I felt that before I thought. Curious I liked that spot more.

Her legs began to shake one second she was pulling me away the next pulling me back to her knot. I focused on that little bead that seemed to be driving her desire.

“oh FUCK JOE!!!” She shrieked trembling.

She pushed me away from her still shaking body. I stood up. She smiled at me and kissed me then pushed me toward the door.

I closed the door behind me and stood there a second thinking.

“What happened?” My sister asked behind me.

“I… I… I don’t know.” Was all I could manage. Had she seen me come out?

She pushed me aside and went in. “Cynthia? Are you ok, I heard a scream” my sister asked.

“Yeah sorry, there was a bug in the shower with me.” I heard Cynthia lie.

My sister relaxed and closed the door, with her inside. I leaned against the door to listen in.

“Do you like my brother?” Aida asked.

“What? Why are you asking me that?” I heard Cynthia from the shower.

“I saw the way you looked at him this morning when he was naked,” Aida continued, “and you’ve been around him all day.”

“I have not!” Cynthia tried to deny.

“Yes you have, I used the restroom you were helping him with laundry. I showered you were hanging out in his room in a bikini! Come on Cynthia, it’s ok if you like my brother.”

There was a long silence. The shower stopped and I could hear Cynthia coming out of the shower.

“Well, maybe I have a little crush on him.”

“A crush? Cynthia, you were scared and screamed his name! Like he was going to run to save you,” my sister teased.

“Well it would be nice…”

“We could arrange for him to see you naked another way, no need for you to go playing a damsel in distress. You’re better then that.” My sister encouraged.

“I can’t believe your ok with this,” Cynthia sounded relieved.

“Hey it’s ok for you to like my big bro, and it’s ok to tease him even. But don’t think that’s means I want you two banging like rabbits all over the place. Your my best friend and he’s my brother. You two are practically related.”

Oh crap? What will Cynthia do now? My sister just said I’m off limits.

“Well, some families roll that way,” Cynthia tested.

“Ew! That’s nasty. Maybe my brother naked sparked something for you but I’m not sure I can sleep with Charlie for a week now! My brother may have ruined me for all boys,” she laughed.

I don’t know why but something inside me felt cold and the hall seemed to get darker. I was not at all appealing to my little sister. Why did that bother me? What did I expect? I guess I thought maybe she’d want me too. I turned back to my room and dressed up and went out. Friends or no I needed to walk alone and think.

---