Lots of sex scenes during the whole serie. They usually last a lot and sometimes mild nudity is seen.
Two or three short sex scenes, none of which are graphic or show much nudity, except one in which a man's buttocks are visible. All of these scenes last for no longer than 10 seconds each.
Reference to a "hand job" and also "blow job".
There is an awkward conversation about what people are "into". A sex scene then follows this, which shows two people undressing down to their underwear and proceeding to have sex. Buttocks of the woman are visible for a few seconds.