Tilla changes back to David

Tilla started to panick, now her skin was becoming pale. She realized she was changing back, so she didn't knew exactly what was going to happen. Her D-cup tits were beginning to shrink and her ass was to. Her brownish skin was now completely white. Then her dick grew back in seconds. As her hair shortened and what was left of her tits were disappearing, she stroked her returning dick. Niw completely back to normal, David layed on the bathroom floor happy.

After getting his clothes back on, David went to his computer to figure this out. He knew that Monica's hair is what caused him to become a woman, so his hair should fix the problem. But as he worked, he thought about how his time with Monica was way better as Tilla then as David. He knew he had plenty of time to perfect the stuff, so he'll try to win over Monica. The good thing is that he has two chances. Both as David and as Tilla.

He went to take the serum again, but waited a second. He wondered which he should go as first.