Jessica looked at all the options the Chronivac had to offer while Nikki moaned loudly in her room. As much fun as her roommate was having, it was a distraction and even if the changes made her happy Jessica figured that she could at least tone them down a little, especially the bondage and punishment aspects since they were the most distracting. Once that was taken care of she looked at whet else the Chronivac could do, not just at the personality and sexuality ones this time, but the stranger ones. There was an animal menu and in it there were so very many choices, which got Jessica thinking. If Nikki liked being a pet so much...
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Nikki never noticed the harness and piercings she had acquired vanish as though they'd never been there. The collar remained changing from black leather to bright pink nylon, pattered with blue and orange flowers. The padlock changed as well, flattening out and stretching into a simple metal tag shaped like a dog bone. If Nikki stopped to look at it she'd see that it had her name and address stamped onto it, as well as Jessica's phone number, but she was too occupied with what she was doing.
And what she was doing was masturbating, shamelessly.
Her pleasure was too much for her to notice that her ears had grown pointed and sat higher on her head, white and silvery gray fur sprouting on them. And though her attention was there, she certainly didn't notice that her previously clean shaven pussy had sprouted similar white hair, quickly thickening into a small patch of fur. All her attention was on her clit, which darkened from pink to red and grew pointed.
Arcing her back she let out a moan that rose in pitch, becoming a howl of pleasure as her tailbone extended into a a tail, growing long and curling as the same white and silver fur as was on her ears. Her tail curled and wagged as she rubbed furiously at her pussy and clit. When her nails grew longer and thicker, turning into short, blunt black claws she took more care with the attention she was giving her pussy, not going as far in and only using one finger, but she made up for it by using her free hand to give her clit even more attention. This was made easier by her clit starting to change further and grow. The bright red nub grew longer and harder. Sticking straight out from above her pussy it quickly reached an inch in length, at which point she was able to take it between her thumb and first finger and rub it, eliciting another long moan and a bout of panting.
Nikki's tongue lolled out of her mouth, past teeth that had grown slightly pointed, growing longer and flatter.
"Ooh! Ooh! Ooooooow!" She howled again, loving how good it felt to play with her big, red clit as she fingered her pussy.
Her clit continued to grow, the hood of it growing as well, forming into a sheath around the base, so that as her clit continued to grow it rose so that it was parallel to her belly.
A swelling appeared at the base of her clit and she took her hand from her pussy to give it a gentle squeeze. It felt so good that she couldn't help but howl and thrust into her hands. Stroking and squeezing the bulge which quickly grew into a large, firm knot, she never even noticed her pussy shrink and close up, its lips sealing into a furry sack between her legs.
A sack that grew larger and filled, when, with a sinking feeling her ovaries descended and changed into a pair of testicles. The moment her balls dropped they set to work, filling with sperm and causing a bead of pre to well up from the slit that had appeared at the pointed tip of her still growing clit, turning it into a proper dog cock.
Despite now having the cock and balls of a male dog, her breasts remained a full and perky b-cup, bouncing wildly as she thrust into her hands.
Her cock had grown large enough, nearly seven inches before it stopped, that it took both of her hands to pleasure it, her knot as large around as two golf balls at the base of her red and throbbing shaft.
Tail wagging, Nikki rolled over onto her belly and began alternating between using her hands to pleasure herself and humping the bed like an actual dog as she fondled her furry balls. Tail held high, curling over her back as it wagged, showing off her cute, round butt for all the world to see.
Her howls grew to high pitched whines and she felt a tension growing in her balls and stomach until it finally happened.
She came in three great spurts, cum splattering against the bed and the bottom of her heaving breasts as she let out the longest howl yet.
When it passed she rolled over and collapsed onto her site, utterly spent as she played idly with her nipples, her slick, red shaft occasionally twitching as a few final drops of cum were forced out.
The could feel her cum drying on her chest and sighed, forcing herself to get up from the bed, cock bobbing in front of her as she walked, her swollen knot still too engorged to allow it to retreat back into her sheath.
Seeing Jessica standing in the hall, Nikki's ears dipped, her tail curling between her legs, "Sorry if I was too loud. I got carried away."
Jessica looked her up and down, taking in the sight of her breasts, shapely hips, as well as her ears, tail, cock and balls, which looked like they belonged on a Siberian Husky rather than the attractive young woman that she was. Nikki felt no shame at standing there exposed, tot he contrary, she couldn't imagine there being anything wrong with it, even giving her knot another little squeeze and gasping at how sensitive she was. It was going to be a while before she calmed down/
"It's fine," Jessica said after a long pause, "You're a good girl."
At that Nikki's ears perked back up and her tail wagged. She was a good girl! Hearing that filled her with such excitement and happiness that she couldn't put it into words. Panting, she bounced up and down on her heels, tag on her collar jingling and cock bouncing against her belly.
"In fact," Jessica hesitated, "Maybe, if you want, once you've cleaned up and calmed down we can go for a walk?"
"A walk!" Nikki couldn't help letting out an excited bark at that. She didn't understand why Jessica sounded so uncertain, there was no way that she'd turn down a walk, "You know I love walks!"
She bounded over to her roommate and tried to throe her arms around her and lick her face, but Jessica held her at arms length.
"Easy there, you're kind of a mess."
Nikki lowered her ears sheepishly, tail curling between her legs, "Sorry."
Head held low she slunk to the bathroom and turned on the tap to wash off her chest.