"Ah yes, Kenny, you're turning out VERY nicely. You're currently 88% complete now, but I'd say you're already extremely fuckable. Although that face of yours still looks a bit the same as when you were still a guy, but don't you worry you're pretty little emptying head, that'll change any minute now." David taunted the voluptuous brunette that used to be his sister's boyfriend. "Tell me, how does it feel to have a pussy?" He asked before laughing teasingly.
"Um... it... it feels... weird..." Kenny whimpered, still unable to move as she transformed. Deep down inside Kenny wanted to defy her tormentor, but he had set her personality settings to "Submissive" and thus she could only respond to his specific prompts.
"Man, I don't know what makes you dumber, cheating on my little sister and lying about it, or accepting a nanite laced drink from her brother?!" He replied with more laughter. "Oh, and don't even think about the possibility of turning back into your old self. According to the Perfect Girlfriend App's lengthy disclaimer, reverting any changes done by the nanites becomes irreversible once the subject's transformation surpasses 50% completion. Your on a one way track to become my big titty fuck-slave for life!" He continued.
"And voila! You're all done. I think I'll name you... Kaylee! What do you think?" David asked with a satisfied look. Kaylee simply nodded and panted like an excited dog causing her obscenely gargantuan breasts and big, juicy rear to bounce and jiggle in response.
"Oh, right. I guess I didn't quite leave you much ability to think. Oh well, let's break in this new body of yours and have some fun! Oh, and don't worry about getting pregnant. I set it so that can only happen if I cum inside your pussy while twisting you nipples at the same time. Kaylee giggled as her lover threw her down on his bed. She prepared herself for the first of many, many fuck sessions with her ex-girlfriend's brother. Her master.
