In this one, your step-sister came home from a night of partying and needs to use the bathroom. You're already in there though and tell her you aren't going to leave unless she gives you jerk off instructions and gets you off. She tries her best and it actually gets you there, but you still decide to be mean at the end and just watch her pee herself. She's understandably annoyed by that. Hope you like! It was an interesting little custom lol