Charlie and Jen are lolling naked in bed. Well, she's wearing a shirt. So only Charlie is naked. But they are in bed. Jen tries awkwardly to make conversation: "What's your favorite color?" she asks. Charlie groans. "I don't know, the color of your eyes," he offers. Jen makes a face and claps a hand over his eyes. She asks him to elaborate. Charlie hems and haws and acts shocked that she thinks he's been "sleeping with [her] for a week," without knowing the color of her eyes. "Brown," he says. "With flecks of green," Jen points out. Charlie sighs. "It's not entirely my fault that we happen to have a completely normal, healthy sex life," he says. I have the feeling that Charlie thinks he and Jen are just, ah -- what was the euphemism we used to use, back in the day when I wasn't an old, old woman? "Having a good time." He thinks they're just "having a good time," whereas Jen is under the impression that their relationship is made of more serious stuff. She asks him if he's implying that it's all her fault? Charlie explains that neither of them has much self-control. Jen wonders aloud if they could go an entire day without having sex. "A day? Are you insane, woman?" Charlie asks. He doesn't think they could make it twelve hours. So, you know where this is going, right? Yeah, they decide to try to go twelve hours without sex. I guess it's hard, when you have an overwhelming physical attraction for someone. Because that's the word on the street. That they have an overwhelming physical…oh, never mind.