The latter half of season 2 (starting with Ep 6 "Pelts") is much more sexual than the first 5 episodes. Sexual content includes multiple strip clubs, fetishes, graphic sex (both shown and implied). Numerous scenes where a woman is on top of a man having sex. Breasts and butts are shown multiple times in multiple episodes. Teenager remarks to a friend over phone "they're doing it" (regarding her parents).
Abby (Julia Benson) is topless in a pool with a man. A lengthy sex scene ensues, with her large breasts bared and visible throughout.
Season 1 has full frontal female nudity, followed by a man kissing her body and nipples.