A boy performs cunnilingus and a girl in a bra performs fellatio at separate times during a scene (he pushes her head toward his groin, we see his pleasured facial expression, then we hear a crunching noise and see his pained expression). Also, he removes her panties, first resulting in bats flying from her crotch and then causing a huge mound of pubic hair to become visible at the bottom of the screen; he cuts the hair with hedge trimmers and we see a shot of her bare lower thighs and knees before we hear her moan sexually. Then, while the two have intercourse, she thrusts on top of him while insulting him and slapping his face twice; he ejaculates in a huge, continuous spray that lifts and pins her onto the ceiling (we briefly glimpse the side of her bare body as she's flying toward the ceiling; the semen covers all but her bare shoulders and legs when we see her on the ceiling).
Lots of sexual innuendo (including sometimes graphic references to fellatio, cunnilingus, masturbation, homosexuality, prison rape, teacher-student sexual relations, and sexually transmitted diseases); also, it's implied many times throughout the film that one of the characters is homosexual.
Two couples kiss, caress, and moan in the back seat of a car; both girls' panties are removed (nothing sexual happens afterwards) and a boy supposedly removes his finger from the other boy's rear end.
A woman's head pops up from a man's lap and she wipes her mouth, implying fellatio. In another scene a boy pushes a sausage in and out of a girl's mouth, simulating fellatio.
Someone pushes a girl's face on a boy's lap (the boy acts as if she's chosen to perform fellatio on him).
A girl walks into an office and sees a woman smelling a pair of panties; also, when the woman uncrosses her legs, enlarged testicles fall out and hang below her short skirt for the rest of the scene (the woman stands behind the girl and briefly propositions her).
Two men make sexual hand and hip motions; also, a boy moves a stuffed animal's arm so that it appears to be masturbating.
A penis sticking though a glory hole in a toilet stall rubs a boy's ear (see Violence/Gore below).
[Nudity] We see a photograph of a boy's genitals; in a later scene he shows the picture to several others.
We see a couple of boy's bare backsides and several boys wearing towels and boxers during a locker room scene (one boy slaps several boys' buttocks).
[Nudity] In a female locker room, we see girls wearing bras, panties, and towels. A girl removes her towel and we see her left breast (and nipple) for a second.
A girl's sweater and skirt are ripped off while she's being chased, revealing her bra and thong panties (we briefly see most of her bare buttocks); she's sprayed with water and then suggestively runs her hands over her body in slow-motion.
Some passionately kissing, one involving tongue twisting.
A few girls in scantily clad attire briefly seen.