After Tomiko finished dinner, she staring at her laptop. The program was up, but she hadn’t decided what she wanted to do. Did she want to stop it? Could it be reversed if she didn’t have the collar on or did she even want to go back to the way she had been before? Bruno had given her immense amounts of fulfillment. More than any man had given her. Plus he didn’t talk, so no more drama with men.

She checked the setting one more time hoping to find a way out of the collar. In the corner, she saw a little bell icon she hadn’t seen before. Clicking on it took her to the software developers’ website. When Tomiko scrolled to the bottom of the page, there was an update section for the software. It matched the version she had installed on her laptop.

“In striving to make our software as user-friendly as possible, we have selected some of the most popular add-ins based on how you used our product. All add-ins are free of charge.”

The website listed over a dozen add-ins which could further streamline the training experience. One of the last ones was labeled “Breeding enhancements.” Clicking on it gave a short statement of increased options to better tailor the program if they ran a breeding program at a kennel. Her finger hovered over the mouse button before finally clicking download.

Twenty minutes later she was scrolling through several sections with many more options under each one. None of them stated anything about reducing or removal of any features just more ways to change things or make the options less generic. This wouldn’t help her at all.

Bruno sauntered past her to get some water then strolled back to her wagging his tail. She reached out with her left hand and gave him a good boy scratch behind his ear. His fur was soft to the touch. He nuzzled into her leg. Gasping a quick breath, the relentless fog begin again. Her nipples prodded her robe as he placed his head on her lap. Rotating her knees slightly she opened her legs. Bruno sniffed and then pushed his head forward. The invading haze consumed more of Tomiko will fight.

Between her ever increasing heart rate, she scanned the selections, checking several which were recommended for starting a breeding program. Tomiko tap update. Seconds dragged by as her eagerness for changed increased to match her heart rate. Tomiko turned completely towards Bruno and opened her legs giving him ample access to her sodden cunt.

Bruno licked Tomiko slowly at first but then picked up the pace. Her hands grabbed the table edge as she began to tremble. The firmness of his tongue against her folds, before burrowing deeper almost made her cum. The urge to get on all fours overwhelmed her. Tomiko needed him. She pushed his head from between her legs, spun around dropping the robe to the ground before presenting herself on all fours. Bruno needed no more encouragement. His paws grabbed her hips. Tomiko guided his massive cock to her waiting entrance. His first stroke went deep. Grunting, she dropped down to her elbows surrendering herself fully to him. She wasn’t his owner any more. He owned her now.

Bruno continued pounding her rapidly, claws digging into her hips. She grunted in rhythm with each of his quickening strokes. Several minutes later Tomiko felt his large knot at her entrance. She relaxed, letting him expand into her. Her mind’s ability to deny his knot was gone replaced with orgasm after orgasm swarmed her body from his knot which grew in size inside her. Suddenly stopping, the warmth of his cum filled her. Taking one hand she reached back pressing against her abdomen. Her fingers traced his cock which was deeply embedded in her. The fog in her mind exploded forcing thoughts of only breeding.

Tomiko screamed when the last massive orgasm hit. She collapsing further, just hanging by his cock. All her strength was gone replaced by the inability to focus on anything. Bruno just stood there panting looking down at her. Her eyes closed.

#

Tomiko woke on the kitchen floor for the second time today. She couldn’t tell how long she had been on the floor. Bruno wasn’t around either. Standing on her wobbly legs moved to the hall mirror. The LED still read “Ongoing”. Her shoulders slumped. How much longer would it be before the collar released her?

As she walked back over to the kitchen table she realized the only thing she had on was her collar. It felt natural in some way to her. When she sat down and crossed her legs the stubble of her unshaven legs became apparent. Had the collar changed other things about her as well? She didn’t notice if her thoughts were different. Would she even realize it if they had changed? Was she now some mental bastardization of a human and a dog? At this point, it didn’t matter anymore.

Looking at the laptop, she viewed all the changes she had made to herself. The software had already pushed the add-ins to the collar. In her mind, she accepted these changes will happen to her, it was just a matter of time. She wanted to belong, to be part of the pack, to serve the alpha. This, she knew, was her new purpose.

She went back through the software one more time to check any setting which would make her more of a submissive “bitch”. Every slider for breeding changed to the max. She wanted to be his completely. He was her owner now. She smiled before hitting send. She walked back over to the mirror to check the collar. The display read “updating” before changing back to “Ongoing”

Bruno appeared on the porch by the open back door. He wagged his tail and whimpered. Tomiko walked over to him and knelt down in front of him. Brushing her cheek against his, he countered with a quick lick to her ear. She wrapped her arms around his neck and chest, burying her face into his soft fur. The smell of sex was around them. She cuddled with him as he sat his haunches down keeping his head above hers.

Her hands slowly moved down his back alternating between scratching and rubbing motion as he attempted to lick her face again. Tilting her head to give him more access before opening her mouth to facilitate his long tongue. Bruno’s tongue was faster and stronger than hers. An effort to suck on it didn’t work, it only made her stomach flutter more. Reaching down with one hand to his cock, she rubbed the sheath working his cock slowly. Its red tip revealed itself.

From this posture, she bent forward to place his stiffening cock into her mouth. He whimpered. She adjusted her position to get a better angle as he stood up on all fours allowing her greater access. Towering over her small frame, she slowly took his cock deeper. His hips forward ramming himself further down her throat. Tomiko relaxed her mouth keeping her lips around the outside. After thrusting again, she gagged a little before adjusting her stance on all fours for a better angle of entry. She wanted to obey him, please him.

Suddenly he stepped over her with each paw along her side, before hooking them under her armpits bracing against her. His hips picked up the pace as his inflating cocked pounded her mouth. The fog returned to her mind as she took short breaths in sync with his thrashing rhythm. After a few minutes, her diminished gag reflex allowed him to go deeper and deeper with each stroke. Salvia mixed with pre-cum dripped off her lips. Bruno wanted this so she allowed him to use her completely. He battered her face with his swinging balls.

Once his knot reached her lips, Tomiko closed her eyes to concentrate on breathing as he continued hammering her face. Slurping sounds filled the backyard. Tomiko opened her mouth as wide as possible to allow his knot to move past her teeth. After three or four more strokes his knot completely entered her mouth each time gliding his red-veined cock further and further. He began to slow when his knot increased in size enough to lock itself behind her teeth. She could breathe slowly through her nose as Bruno was now knotted to Tomiko’s mouth.

When he came, she didn’t have to swallow. It was past that point pumping it directly down her gullet. Her lips stretched tightly against his huge knot. Bruno continual panting was all she could hear. When he stepped back over her and spun around, his tail rested upon the top her head. Her nose was a few inches from his ass as the only thing she could see when she opened her eyes was his haunches. Tomiko’s jaw ached from her impalement.

Bruno took a few steps forward and pain ripped through her face. She scrambled behind him on all fours, his cock locked inside her mouth. The fog in her mind began to clear. She realized he truly owned her. She was his bitch to be taken and used whenever he pleased. She got what she wanted. To serve her master.

He shuffled further out into the back yard dragging her behind him by her mouth as she frantically tried to keep up. Once they were on the grass he stopped. If anybody had looked over the fence it would have been quite the sight to see. Boxer-Great Dane mix with a small Asian woman lodged on his cock. Tomiko was knotted with him in the backyard for twenty minutes before his cock shrank enough to get past her teeth.

She fell to the ground to rest. Bruno laid down beside her placing his head on her hips. She reached out with one hand and placed it on his head. The other went to her neck. The collar wasn’t there. It had fallen off as he dragged her out the door. So, this was it. Her training was complete. Laying naked in her back yard she wondered what it would be like the next time she took Bruno to the dog park. Would she respond the same way to other dogs or just Bruno?

#

After a quick shower and lunch, Tomiko was nervous to leave Bruno. She needed to go by the store and pick up some groceries. For the past three days during her training, she hadn’t even thought about going out, but here she was backing out of her driveway. She frowned as he just stared at her from the front window. The rest of the trip, regret tugged at the back of her mind.

As she entered the shopping center parking lot a large “Now Open” banner hung from a store three doors down from the food mart. Winding her way through the rows of cars to see the front of the store. The blue and red neon sign in the window read “Tattoo U”. She parked and went inside.

A short stocky woman came from around the counter. Her arms covered in tattoos.

“Hi, I’m Brenda” she smiled. “You interested in a tattoo today hun or maybe a piercing?”

‘Not sure,” Tomiko raised her foot showing a flower on her left ankle. “I got one on my lower back too. Beach vacation dare.” Tomiko shrugged.

“Did you have an idea of what you were looking for?” Brenda walked over to a counter which had several design books scattered on it. Moving a few around to try to straighten them out. Tomiko glanced at the covers of a few. She wanted to take a part of Bruno with her when she went back to work, maybe a tattoo was the answer. “Do you have something dog related?”

Brenda smiled, “Oh yeah. Dog paws are very popular. People get them to remember their pets or to represent one thing or another. I have several designs over here if you want to look at them.”

“Thanks,” She followed her to a wall with dozens of designs on them. Some were of certain breeds of dogs or cats. Some just a silhouette. Just to the right of that was a simple paw print. That’s the one she wanted. “Ohh, I like that one. Simple.”

Yeah, that style is one of the most popular ones. We have a special going right now since we just open last week. Half off,” Brenda smiled. “How about it?”

She wanted, no needed, to mark that she now belonged to him but a collar wouldn’t go well with her work attire but a tattoo could be hidden. If she wore a bikini it could be seen too so she would have to think about where to put it. “Ok, I’ll do it.”

“Great,” replied Brenda. “Step back here into booth three and we will get started.” She pointed the way. Tomiko followed her.

“Could I ask a question?” Tomiko couldn’t look her in the face.

“Sure. Fire away.”

“This is a very private thing for me. My dog is very special but I can’t really have a dog paw just anywhere because of work so could I ask that you place it in a private location?”

“Once we are in the booth, I can close the curtains so we will be alone while I ink it. Is that your concern?” Brenda closed the door behind her before drawing the curtains closed.

‘Oh…yeah..err. that’s what I meant.” Tomiko’s face became a deep crimson.

“Ok, so you wanted the simple paw design right?” Brenda pulled up the pattern on the computer.

“Yes. Can you make it life size?” Tomiko sat down the chair with her hips slightly forward. She fiddled with her small purse. She didn’t remember the pain from her back tattoo. She had been too drunk at the time. It did hurt the next day though.

Brenda clicked on images of different paws. “What breed?”

“Great Dane.”

“Oh, a big girl.” Brenda selected the largest image and started the print.

“Boy…um…he’s a boy.” Tomiko exhaled.

Brenda looked over to her, “Don’t be nervous. It will be fine.” She grabbed the thin paper from the printer, got some of her equipment ready before putting on her gloves.

“Okay, point of no return. Where you want this monster?”

Tomiko looked at her and breathed deep before exhaling. She lifted up her hips and then bunched up her dress exposing herself from the waist down. She wasn’t wearing any panties so it showed neatly shave pale pubic area surrounded by the tan lines outlining her bikini area. “Can you put it here?” Her finger touched the pale area above her now damping pussy.

Brenda smiled. She took a pair of scissors and cut the pattern as close to the lines as possible before placing it in the pale area. “Well, it is a bit big for the area. Seems like the toes will be above your bikini line. You want me to make it smaller?”

“No, I want it life size. Can you slide it down some? You can just get it as close as possible. It won’t matter if the bottom part…um…goes that low. You can just ink… around that… right?”

Brenda grinned, “ I understand. I’ll blend it in so they are merged together. Is that what you mean, hun?”

“Yes, that would be perfect.” Tomiko pulse quicken just thinking about having a visual reminder that her cunt belongs to him now. This was the perfect way to take him with her.

An hour later she was done. She had a black paw print that covered her pubic area with the bottom part of the paw split down the middle by his newly marked cunt. There was no going back now, not that she wanted to but she still wanted to go to the beach in a bikini with making a fuss.

She needed a way to take him with her when she went wasn’t at home. It itched a little while she finished her shopping but the invis-skin patch Brenda placed over it kept it to a minimum. When she pulled in the driveway Bruno head popped up into the window. As the garage door opened she wonder what he would think of her new mark.

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