As much as the animal side had taken hold, I still retained enough of myself to think clearly. I lifted up my hand, now a paw, and saw that the ring was still safely in place. Amazing, I thought. It altered its own shape and size to match how my finger had changed.
I didn't have a lot of time to think clearly. Alexa was really going to work on my sheath. I felt sexual pleasure unlike any I had felt in my life. I knew that she was to become my mate but I wanted her to enjoy her experience. I looked down at her head moving back and forth along my sheath and focused on her shoulders and neck. She had such perfect skin that I didn't want to ruin it by biting her. Luckily I had the ring.
As she continued to suck at my sheath the last part of my change took place. I felt a twitching sensation above my ass as my tail sprouted from my body. The feeling of my new appendage made me fully appreciate my new form. It also made me realize that while I enjoyed my change, it had been somewhat painful. I decided that Alexa wouldn't have to go through that part of the process.
I wished that she would change as we continued our sexual encounter and that any pain the change might cause would be offset by the pleasure she felt in having sex. I looked down at her head and after a minute I could see pointed ears sticking out from her between her hair. I took her by the shoulders and beckoned for her to stop sucking my sheath. She looked right back up at me with an annoyed look on her face.
Her face was already changing, however. Her eyes were now as bright amber as mine. Her teeth were also changing into fangs and it was also causing her to drip saliva out of her mouth. She then looked at her hands and saw that they were growing more paw-like as the nails lengthened and her fingers thickened. Her perturbed look now changed to one of lust and anticipation. She understood why she was changing. "Joey, this is incredible," she growled in a voice that was lower in pitch and very bestial. Her body increased in size as muscles expanded in her upper body.
She tugged furiously at her jeans and removed them as best she could since her legs were already larger. She pulled them past her shoes, which she then kicked off her growing feet. She still wore what appeared to be a very small thong. Her eyes met mine again. In one swift motion, she reached down with her fur-sprouting hand and ripped off her thong. The tattered garment was left in ruins. She walked in front of me, got down on all fours, stuck her ass in the air and growled, "Fuck me, Joey!"