As you walk to your girlfriends house, you are stopped midway by a strange flash of light hurtling through the sky. It turns, seems to pause a minute, and then dives straight at you, knocking you over. When you get up, a booming voice within you, yet somehow different from you, somehow external, informs you that you now have a gift. A gift to swap traits between people. It could be your personality, or memories, or even thoughts, or it could be body parts.
Excited, hoping this will help you get into your girlfriend's pants quicker, you pick yourself up from the grounf, and head towards her house. On your way there, you spot a college girl with large breasts, and quickly swap them for yours. A quick feel and peek confirm that. Excited, you wonder if perhaps you really could swap memories as well. Switching your chests back, you wonder what the girls favorite sexual act is. Suddenly, your mind is filled with guys stuffing your mouth with their cocks, semen running down your eyes, and your hands full of more dicks. Whoops, better change that thought back... and hope you can unlearn how much you love the taste of hot cum.
Maybe not. You hurry on towards your girlfriend's house. Her mother is in the kitchen, making dinner. An attractive brunette, she calls out "Hello John," as you pass by. "Sarah's upstairs in her room-- knock first," she says. "And leave the door open."
You wonder if Sarah's mother is as attractive unclothed, as when she's dressed. Stopping for a second, you decide...