As stated, there is a bare skin, no nudity sex scene between husband and wife in first episode. It's like a flashback between two scenes for a few minutes.
Episode 3 reveals 2 women in love with flashback scenes to them almost kissing and spending the night together (but not touching or anything sexual), just chemistry. One of the women is married with a child.
Episode 4 there's talk of self sacrifice due to infection. There's visual of open wounds/ blood/needles. A flashback of a ritualistic you boy being burned post mortem.
Episode 5 there is talk of a dick falling off in space. A daughter lying to her parents & sneaking out with a boy. In space they talk about arousal & orgasms over vegetables & drinking vodka.
The rest of the show has lots of drama and pulling your heart strings.
Will update, once we've watched more.