A man is caught is watching porn. Not seen for too long, but the porn is graphic

A woman undresses herself in front of a man. Full frontal nudity is seen. It is implied that they have sex, as moaning and squeaking is heard later

A man imagines a woman's naked body. Her vagina is clearly seen and the man imagines performing oral sex on her. It is very clear

In a brief montage of a man's daily routine, he is seen thrusting into his girlfriend's naked buttocks. The penetration is seen clearly but briefly (hard to miss)