Fan community for FX's The Americans

I just think back to the times when they've been having sex for work, and it's always been made clear that's what it was. Like with Martha, they're always deliberate to show Philip's face change when she's not looking and it's a very different expression from what she's imagining. Or with Elizabeth and Brad in the previous episode. Here it seemed like there wasn't any indication of that, or at least that's how it seemed to me.