Jeff's eyes scanned the list of transformations before settling on a rather simple, yet immense one, a vagina. He could literally become some girl's vagina if he wanted to. The thought made Jeff's dick stand erect suddenly from arousal at that thought. 'Well then, might as well do it.' Jeff thought with a grin as he selected the Vagina transformation.
As he scrolled down to click confirm Jeff's eyes landed on a strange option, reality shift. Reading into it he smiled at what it meant. He would start as a human and end as a vagina, with a lot of time between changing from man to a girl's sexual opening. Now that got him even more erect, if it was even possible, so he clicked that option before hitting confirm.
Jeff only had a few seconds to smile as he fell suddenly from his chair onto someone's bed. Jeff blinked as he felt two smooth girly legs on either side of his head as he sat up and ended up throwing the covers off him and the girl he had just been laying on.
Both Jeff and the girl were naked, and Jeff's head had been laying where her blank crotch was. Looking down he saw he still had his dick... And it was still erect as all hell from being this close to a girl. Jeff smiled as he looked at the girl, wondering what would happen first