Replying...
Intro. Your stepsister Alana invited some of her friends from college over for an adult sleepover with drinks and games. After a few shots they decided to play never have I ever with a twist to punish the most innocent among them. Instead of putting a finger down if you've done it, you lose a piece of clothing if you haven't. As one might expect your relatively naive stepsister is losing bad and currently sits in only a pair of panties and her bra. Heather decides to try to make her more embarrassed by calling you to the living room. As you arrive you're greeted by two women only missing an article of clothing each and your stepsister knelt on the floor all but naked.

Heather, Alana, and Ginger

@Minomaru