Sex is discussed explicitly in the movie by various characters, including a 17-year-old teenage girl who behaves and dresses very sexually provocatively.
Rachel asks a complete stranger, a grown man, for a ride at the beginning of the movie. She rides with her legs up on the dashboard. Later, she comments on how she had her legs up and her dress hiked, and he didn't look once. She comes to the conclusion that he must be gay.
One of the main subplots involves incest (a step-parent sexually assaulting a 14-year-old child), although it is not actually shown. The victim just talks about how her father climbed on top of her, put his hands on her, and had sex with her.
Rachel mocks Harlan for being a virgin.
Lilly is seen in bed with her husband.
Rachel removes her panties from underneath her dress and encourages a male character to look at and touch her privates. She stops him after a few seconds, and then she gives him a blow job. We see it briefly.
Rachel is considered sexually attractive to a pre-teen boy in the movie. At one point, they end up having a fist fight outside, and Rachel's grandmother turns the hose on them to make them stop. Rachel says "Oh my God, you're hard!" obviously referencing the fact that he is sexually aroused and has had an erection. She then uses the term "boner" to describe what has happened. The boy is mortified and runs off.
Rachel and her mother are both portrayed as having severe emotional problems that often point to sexual issues.
Rachel attempts to seduce a grown man in numerous scenes. She leans up against him and tells him to relax. She even gets in bed with him at one point and asks for sex. He rejects all of her advances.
Lilly makes out with a man who is not her husband, despite being a married woman.
It is revealed that Lilly has been with several different men in her life. The first guy, Rachel's father, is said to be the kind of guy you would never want to see your daughter fall in love with.
Rachel wears very revealing clothing in almost every scene she is in. She wears very short dresses, midriff-baring shirts, short shorts, etc...
Rachel threatens a group of Christian teenagers by saying that if they don't leave her and Harlan alone, she will find all their boyfriends and "fuck them stupid".
A group of Christian teenagers call Rachel a slut.