We watched for a few minutes in silence. The girls were mesmerized. I tried not to smile too widely.

If she had been sober, Lauren might have realized Leah's intentions and given her shit for it. But it had been a week since the shower incident, and even longer since Leah had broached the topic of a threesome. And Lauren was drunk — and horny.

"I need to turn this off," Leah said. "It's making me kind of wet."

"Me too," Lauren blurted out, covering her mouth when she realized what she had said.

Leah feigned embarrassment, too. And she didn't change the channel.

I subtly put my hand on...