Christian is shown masturbating three times in his bed (no nudity: just his arm shaking under the covers and his face of pleasure)

No full nudity is shown in this movie..

But this is a story about the relationship between a 18 years old boy with a women, aged 36 years old.

There are few scenes of having sex...

The mature woman takes off her panties in a one scene..

(spoiler) A woman is hit/slapped once in the movie in front of her child.