The cum on Kitty's face begins to change Kitty into Ben's fantasy girl.

As they walked back to the Professor's office, Kitty tried to make sense of what had just happened to her. She had shaken the boy's--Ben's hand, and been overcome with lust. Her uniform should have protected her from his mutant power but for some reason it didn't.

And, she realized, she didn't mind. She wanted Ben. He was hot and she was a sexy little Kitty, a Pussy that liked hot boys, especially Ben. And his cock felt so good inside her, until Jean pulled it out. Maybe if Jean had felt Ben's touch she would know why Kitty wanted it so bad...

As Kitty thought these thoughts she found herself getting turned on again, horny, a horny little Pussy Kitten... Her nipples were hard, and straining against her uniform, which seemed tighter around the bust...since when did Kitty--Pussy have anything that could be called a bust, but she felt the flesh of her...tits...pushing out, growing. She was mutating again...into a girl with large bouncy boobs, and a tiny waist, and her bottom was filling out too, and her hips widening. Kitty was becoming a curvy sex kitten. Her face was changing too, she could feel it, the swelling of her lips, her nose shrinking down to a cute little upturned snub, her eyes getting wider, doll-like...