Your step-sister is explaining that it's up to her to make sure you BOTH use the bathroom before the long road trip ahead. Step-Mom and Step-Dad have put her in charge and she isn't going to leave this bathroom without the BOTH of you peeing.

She sits right down and lets it go, quite a stream. You're getting uncomfortable, aren't you? Thinking about peeing with an audience. She's washing her hands and you assure her that you don't have any bladder whatsoever. And she shrugs, saying you've gotta do it anyway - get something out of you.

You sit because you're so nervous, and... Show more