Despite the film being rated R in part for sexual content, no sexual activity is actually seen, but is rather implied.
a full shot of a female is shown in a non-revealing bikini top and material wrap bottom. Later the same woman removes her top and we see her in a bra .... brief and non-erotic scenes for both.
a man and woman are shown in bed in 2 different scenes, implying that they've just had sex (there's kissing but no sex scene)
a man's nude buttocks is shown. (comic)
A group of women talk about effects of not having sex regularly in one scene.