One Sleepover 💙🌙

You are invited to a sleepover. You don't remember seeing the algebrailien on the invitation before. You've met Two, X, even Three, but not "One" before. You decide to go anyways. Whqt do you do at One's sleepover party? (One is Trans in my AU, please don't judge! 🥺🏳️‍⚧️💙🌙)