"Hold on, hold on, I have the best idea." Your girlfriend laughs, you can already feel your skin crawling as she flips from the pictures to another app. You can see your sister settle in behind her and grin mischievously as your girlfriend begins to type away. "Wait wait we need a name for her, Emily? Luna? Oh what about Alice." She snickers.
You try to look over but your sister quickly pushes your head back. "Oh that picture works good there, it makes her look somewhat close to eighteen." A chill runs up your spine as you try to grab the phone, this time your girlfriend squirms away and runs to the other side of the room. You dive for her again, but this time your sister grabs ahold of you first, her hands groping your breasts and pulling you down to the floor. In a flash she is sitting on your stomach, pinning you to the ground with a grin. Ever since you were a little kid she has always been able to tackle you.
"I am a High School graduate who lives with my little sister, I am looking for someone to take me out on a date and show me a good time." Your girlfriend spouts off, reading off the fake profile she has made for you as she paces back and forth in front of you.
"Any way you can make it sound more slutty?" Your sister asks as you turn an even brighter shade of red.
Your girlfriend types a few times and then smiles. "Alright how is this: I am looking for a big strong handsome man to take me out on a date and show me a good time."
You groan and shutter a bit as both girls giggle to themselves happily, sounding more and more like immature thirteen year olds. Finally your sister lets you up and after taking a moment you rise to your feet, trying to avoid eye contact with the phone and the ever frequent dings signally profile messages. "So I have a game." Your sister announces, leaving for the kitchen and coming back with an empty beer bottle. "Any of you play spin the bottle?" She asks as you give a sideway glance with your girlfriend.
"Yeah, but usually with more people." You reply as your sister rushes off downstairs to the skins, coming back with the handful of 13 year old skins as well as a few others, setting them down in a pile next to the bottle. You begin to pick through the skins before finding the one that does not match the others, the one that you made special for when you grew older and when you wanted to return to your younger body. "You brought this one?!" You ask incredulously holding up your normal age male skin.
"So the way were playing is simple." Your sister continues as you toss it back into the pile with a sigh of annoyance. "You spin the bottle, and then pick a random skin from the pile and put it on, whoever the bottle is pointing to has to kiss you for thirty seconds while you wear the new skin."
Your girlfriend's face lights up, you can already see her nipples growing hard with the lustful thoughts playing out in her head. "What if we want to do more than kiss?" She whispers.
"Oh I like you!" Your sister giggles back, slapping your girlfriend's arm playfully.