there are several instances of a sexual nature. In one, the female reaches for the man's organ thru his pant pocket.

some passionate kissing.

We see the young Iris and the young John naked in several scenes underwater where definition of bodies is a bit obscurred. Breasts of the lady are seen in elongated sequences underwater. But there is a scene of side/frontal nudity with Iris on the shore. They jump in the water fully nude. This is shown from behind and bare buttocks are visible.

Iris and her lover are seen in bed and she is topless as she is atop him and thrusting as they have sex. This scene is for a few seconds.

Full rear and side nudity of a female character with pubic hair faintly visible.

none.

mainly shit, damn,and hell. a few uses of the word fuck.

there is some drinking and smoking by the main characters.

none.