Your big step-sis was cleaning your room and found one of your big secrets. She knows you’ve been watching porn and she’s threatened to tell on you, but she’s watching you for the whole weekend while your step-parents are gone. She also found your old binkie and a package of crinkly pull-ups with little characters on them. It’s so humiliating when she tells you that you’re going to be her little one for the weekend. She’s going to throw a party and have fun, while you can’t leave the house because you’re only allowed to use pull-ups, you can’t use the toilet, you have to wear your binkie, and you can only have mushy food. You really don’t want to get into trouble, so your only choice is to submit to the humiliation. Bratty step-sis coddles you.