UPDATE: Here is some more brief information from MK about Caplan's nudity.
The Lizzy Caplan scenes are both pretty brief and weirdly edited unfortunately. You don’t see much or for very long.
http://www.recapped.com/celebrity-nudity-rumors-july-3#comment-170752
Here is some information I received via e-mail from MK about who gets naked during the season premiere of Masters of Sex, which airs next Sunday, July 13 at 10PM on Showtime.
Masters of Sex season 2 update.
Episode 1: Lizzy Caplan shows her breasts during two different sex scenes. Allison Janney shows breasts during a sex scene.