A woman rides a man during sex, her bare upper back is seen.

Sex scene with thrusting, no nudity.

A woman removes a man's shirt, preparing for sex, but are interrupted.

A woman implies that she was raped.

Teenagers kissing.

A teenager tells her boyfriend that another girl only wants to "get in his pants".

A woman shoots and kills a man.

A woman murders a man with a pistol.

A woman murders another man with a pistol

Surgery is done on alien corpses and humans. Blood is shown on clothes and skin of characters throughout the series. When people are shot by aliens, blood sometimes spurts in small dusty-like eruptions.

Shit and bastard are used alongside lesser profanity like bitch and ass.

Alcohol use.