Tell them to show off peeing for you.

"I've got an idea how you could thank me," you tell the girls. Your former girlfriend Sharon had been caught in their situation on a road trip with you, and you enjoyed watching her pee by the roadside. "Let me watch you pee."

Tara is first to raise an incredulous protest. Jennifer looks annoyed. Kath rolls her eyes. Luna blinks.

"Quiet, we can't have anyone hear," you say. "How about it?"