As Jon's eyes swept across Karyn's ridiculously masculine body, he felt a familiar warmth in his crotch as blood rushed to his cock. Karyn started to say something, but stopped with her mouth open as her eyes took in Jon's form, with its combination of cartoonish femininity and ridiculously huge penis.
The two of them rushed towards each other, Karyn knocking a small woman in a lab coat aside in her rush to reach Jon. Jon started to feel dizzy as his cock hardened and swelled - he was too overcome by his bizarre hormones to realize it, but the sheer volume of blood required to power his erection left his brain a bit starved of oxygen.
Jon stumbled and fell towards Karyn. Karyn grabbed the over-sexed shemale and held Jon up so he wouldn't fall. She could hardly believe the size of his massive cock as it swelled up. It was almost as long as Jon's petite arm, and definitely bigger around. Karyn felt lubricant dripping down her legs from her suddenly sopping pussy. Karyn didn't know what was coming over her, but she could barely think because she was so turned on.
Jon stumbled and slipped out of Karyn's arms. He fell on his huge, jiggling ass, and his cock stood almost straight up in the air. Karyn tried to catch him, but her large, manly hands grabbed hold of the end of his huge cock instead. Barely pausing, Karyn tightened her grip and tried to ram the huge thing into her gaping pussy. The huge tip looked too large to fit, but the treatment must have done something to it, because Karyn was able to squeeze it in. Both Jon and Karyn gasped with pleasure as the staff members stood around, dumbfounded.
Jon lay back his head on the floor and began to grind his hips up and down, as Karyn squatted slightly and moved in time with his massive, pulsating cock. Jon and Karyn were so overcome by this strange, preternatural lust that they were only barely aware of the changes that started to happen.
