Your sister is explaining that it's up to her to make sure you BOTH use the bathroom before the long road trip ahead. Mom and 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 after a little while, she's rolling her eyes and laughing. She says you won't be peeing if you're sitting, right? Or is it that you CAN'T pee? Are you not as good at this as she is? Hmmm. She's laughing and you stand, feeling pushed into it now. And the laughter continues as she points and rolls her eyes, her tone getting more and more irritated though.

Now she demands you step aside again because she has more to let out, and she does. Shaking her head at you, she says how it must just be her, huh? Girls can do this, but guys can't? And you're back at the toilet with her shaking her head... rolling her eyes... poking fun at you and your lack of bladder control.

How pathetic.