Stephanie lowered herself onto Steve's penis and yelped like a dog as she slid herself onto it. The sex was great for the first bit, but then Stephanie started panting a lot more... In the dim light of the room it was also hard to tell, but Stephanie looked different. Occasionally switching positions it hit Steve when they started trying doggy style.
"Stephanie wait!" Steve said "I think there's something happening to you, Light's fully on!" and then smart lights illuminated the room and Steve was able to see what was going on with Steph. Her face looked a little... longer? Her ears seem to have migrated and became more like a Pomeranian's like her tail, and... was she shorter?
A week later Stephanie came out of the shower most of her hair still damp. The stuff on her head, crotch, eyebrows, oh and all the fluffy body hair that started sprouting all over. She for sure was shorter, and taking on more canine features. What was concerning her even more though was the way her hands were starting to change. Getting smaller and it was like her thumb had started migrating... The doctors warned this may be happening. The tail was just a precursor for her main change, but even with her ears and the hair... She could pass it off as something cute and quirky. Maybe win awards at furry conventions. However it was obvious to her that the changes weren't going to stop at merely a few superficial features. She'd have to go back to the doctor soon and do some tests. See how much her organs and digestive systems had shifted to that of a dog's.
Steve said "Nice look puffy."
Stephanie said "Glad you enjoy the new look hun, but while wet my hair isn't that poofy."
"Yeah, and you smell like wet dog too." Steve said in a joking tone, but Stephanie started sniffing herself.
Stephanie said "Do I smell like wet dog?" Did she? She was so used to her own scent that maybe she didn't notice the scent.
Steve walked by and took a sniff of her head and said "Just that Berry shampoo you always use. Calm down Stephanie, I'd highly doubt you'd turn completely into a dog. Even if we can't figure out how to deal with some parts cuddling just becomes so much fluffier for the two of us."
Stephanie smiled. Steve was a bit of a goof at times, but he tended to keep her from feeling too depressed. Still what if she turned into a dog?