Courtney is walking from her bathroom back to bed when she suddenly crumples over in pain, clutching her crotch. She looks at her calendar and, much to her dismay, remembers that today is her period. Courtney's face suddenly breaks out in pimples, her belly expands, she craves chocolate, and she is crying despite loving chocolate.
In an ad for Sometimes Ultra Sure, Brittany and Courtney are walking from a game of tennis when they buckle over in pain from cramps. During this, Courtney openly acknowledges the product's slogan: "At least you're not pregnant, though."
Kimmy expresses to Courtney how she wishes sick days could encompass "period days", to which Shayne scoffs and tells her not to be so dramatic. He accepts Courtney's challenge to be shown what a period is like. Courtney punches Shayne in the crotch and verbally abuses him as he is bent over in pain, after which Kimmy fires red liquid at his pants. The two girls leave as Shayne weakly says how at least childbirth is easy.
Olivia tells Courtney that she has started her period. Courtney mentions that hers has recently ended, leading Olivia to conclude that Courtney, despite being "synced" with her since they were 13, is a "period cheater" who has now "synced" with "that Brittany girl" she has been hanging out with. Courtney initially denies this but admits so. She tries to downplay it, but Olivia orders her out of her house.
A young Olivia tells her father (played by Ian) that she has started her period. Her dad panics, frantically searching the kitchen before handing her band-aids and starts wrapping paper towels around her waist. He stops once Olivia interrupts him to inform him that her mother had already bought her menstrual pads and that she is actually proud. As she walks away, her father calms down and rewards himself with the newspaper funnies.
Kirby makes a remark about Constance being on her period when she cannot make copies of paperwork for him. Constance quickly turns cross as she berates Kirby for his flaws such as incompetence, willingness to risk adultery, and onion smell and states that while she is on her period, it has nothing to do with why she hates him. She walks off, leaving Kirby to note that someone has seen him for who he is before retreating into a bathroom.
Ian about to buy tampons for his girlfriend. Unfortunately, the clerk obnoxiously announces that Ian has tampons. Ian tries to quietly explain his situation, but the clerk continues to loudly talk about him before mentioning that his girlfriend must appreciate him and turning the mocking on himself, mentioning how lonely he is. Ian pays, tells him to keep the change, and walks off as Courtney comes up to buy gum, as the clerk loudly asks.
During history class, Courtney asks Kimmy for a tampon. Kimmy asks Monica for a tampon, which she sneakily gives to her under the guise of sharpening her pencil as she drops it in Kimmy backpack. Courtney and Kimmy swap backpacks, but rights as Courtney prepares to leave for the bathroom, the tampon falls out of the bag as everyone turns to look at it with wide eyes. Before anyone can react, however, the clerk (Shayne) peeks through the door and asks "Woah, it that a tampon?!" as the bell rings.