A Night of Desperate Ladies

"Sorry, but that wasn't even close. You've going to have to wait a couple minutes to try again."

"You've got to be kidding! I just had to stop mid-pee, I can't wait that long!"

"Well, that's the deal, you'll have to figure it out."

She whimpers a little, but doesn't say anything else. She briefly spreads her legs while she presses a finger deep inside her pussy, likely directly on her peehole, then clamps her legs tight around it. She is hunched slightly forward with her butt stuck out behind her in a desperate attempt to relieve some pressure, but it doesn't seem to be working. Soon she starts bobbing up and down, her breasts bouncing as she does. Finally she breaks.

"It's starting to come out, I have to pee now!"

What should you have her do?