Tina gasps as she inspects her younger sister. At first, everything appeared to have worked perfectly. Her sister lay naked on her bed, apparently unharmed from whatever ordeal she'd been through, and with the noticeably different physical features Tina had given her. It was when Tiffa rolled over in her sleep that Tina realized she must've done something wrong. Between Tiffa's slender thighs, there was a smooth, flaccid cock. The only thing Tina could figure, was the 1 she'd selected and thought that she should've examined the program a bit more closely before executing the changes. She really should try to change Tiffa back before she woke up... Then again, that cock didn't look all that bad on her...