Keri Russell did a terrific nude scene in last night's episode of The Americans. She is first shown wearing a towel. With her back to camera, she drops the towel showing the viewer a full shot of her back and butt from behind. Very well-lit and definitely her as she turns her head to look in the direction of the camera. There is one final shot of her butt as pulls a long top on.

The Americans S03E03 (Keri Russell-Ass)