You're not playing cards, but you're still making bets...

"Fucking Christ," Amy says, "That was so fucking hot."

"I'm all tingly," Ellen giggles. "I want more!"

"So do I," Amy says. She scoops a small bit of your cum off of her belly and licks it off her finger. "Fuck the card game. We're going to play Knockup. It's a new game I just invented."

"That sounds... dangerous..." Ellen says.

"How do you play?" you ask.

"The rules are simple," Amy says, sliding over to Ellen. "You get to watch while Ellen and I are going to fuck each other. The first one who cums loses. You fuck the loser, and this time there's no pulling out."

"Oh fuck," Ellen says, "That is dangerous. But also so fucking hot."

"What do you think, Ellen?" you ask. "Do you want to play Amy's new game?"