Throughout the film, no naked genitals are shown.
The film opens with the Genie created an illusion of a large-breasted woman in a bikini, who seductively eats a banana, before she removes her bikini top, revealing her large breasts.
Walter accidentally takes a photo of Brittany's cleavage.
Walter accidentally walks in on Brittany getting out of the bath. She is naked, but covered in bubbles, though we can see her boobs and butt. He uses the Genie's mind control powers to make it so she can't see him, and he ogles her nudity.
Walter uses the Genie to make one Playpen girl lust after their (gay) housemate. He makes another forced to play with her boobs whenever she talks about money. Another is forced to orgasm whenever she hears the word "in", with it not ending until she hears the word "out". We see these girls struggling with their curses for a while.
Walter tells an attractive jogger to strip down to her underwear, and she does. We get slow motion shots of her boobs jiggling as she runs.
Walter tells a girl to put her phone on vibrate, and put it in her bikini bottom. She does, and he calls her back, making it into a vibrator for her.
Dave goes around to introduce himself to the Playpen girls. He is greeted by Mona, the girl with the orgasm curse. He accidentally triggers her orgasm several times, and she drags him in for sex. We see a shot of the outside of the house, and Dave says "Let's get you out of those clothes". This ends her orgasm, and she kicks him out of the house.
Walter sees Brittany sunbathing outside in her bikini, and he decides he wants to have sex with her. He uses the Genie to make her think he's Dave.
In order to get her in the mood for sex, he uses the Genie to, in his words "[generate] soothing sounds and vibrations that make [her] erogenous zones tingle with sexual desire". Brittany moans and writhes in pleasure on the sun bed, before Water says that "it uh...hits the spot, huh? The uh...the G-Spot". The Genie then "activates" Brittany's G-Spot, and she has a powerful orgasm.
Brittany then grabs Walter's crotch, and feels that his penis is soft. He leaves to prepare, and she removes her bikini top, revealing her boobs. Walter then uses the power of the Genie to give himself a permanent erection. He strips down to his underwear (we see his bulge through them), but before he can go out to Brittany, his parents come home.
Walter is then unable to find the Genie to save himself, so he's forced to sneak out of the house to avoid embarrassing himself.
Dave then comes home too, and Brittany forces him to have sex with her in the hot tub. We see this from a distance, as Mr Buckell watches.
Agatha gets the Genie, and is told that she wants to learn about human experience, such as what an orgasm feels like. Agatha tells her she doesn't have much experience in that department, so to help out, she makes Agatha have a (fully clothed) orgasm on her bed for a whole minute.
Walter tries to get to Agatha, sneaking through people's gardens in his underwear. He finds several boys masturbating, watching the Playpen girls. When he gets to Agatha, he finds her laid contently on her bed, her hair a mess, with birds singing.