Vault 76 has 'Programs' that everyone is issued and must follow for the good of the vault. Many of these 'Programs' are sexual in nature, but residents opt into them willingly. Samantha opts in, wanting to be an asset to the vault. This leads her down a path she never imagined, taking every wrong turn possible. Some points in this story jump between scenes rapidly, hopefully they aren't too bad to follow along with :)
Ava's parents are divorced, and while she lives at her mom's during the week, she spends her weekends at her dad's house. She misses her dad so much and wishes she could be closer to him. When she discovers her dad frequents a local men's bathroom on the edge of town to get his cock sucked, Ava decides this might be one way she could really spend time with Daddy...
Emma thinks a weekend in the mountains is just another awkward obligation with her divorced dad. She doesn't know it's a desperate bid for closeness—or that her father's charismatic mentor has brought his own teenage daughter to serve as a living example. In the isolating silence of the remote cabin, a brutal philosophy of intimacy will be taught, and Emma will become the final, necessary step in her father's education.