Wakazuma to jukujozuma: Zecchou no aegigoe(2011)

Atsuo Shida and Shinji Tomori are in a boss-subordinate relationship, having graduated from the same university and becoming good friends. Tomori's wife, Natsumi, is eager to have a child. When Tomori comes into the bedroom from the bath, he is excited to see Natsumi, completely naked in only a negligee. Meanwhile, Shida's wife, Tsukasa, is jealous, and the trivial matter of their relationship leads to a sexless marriage.