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 :)
Her brother's wife. If one looked up lechery, they would find her photo. Preying upon her sister-in-law, Cin uses every trick, every power, every iota to corrupt the virginal Jessica into bending to her will. Then Cin brings Aaron, her husband, into the the lewd arrangement. Will Cin lose her virginity to her own brother? Only time, and reading this tale of salaciousness, will tell.
Bill and Missy have just married and when Missy asks Bill to fuck her and give her a new baby, they succeed. Now, three months into her pregnancy, Missy is starting to show and Bill finds her so sexy he can't keep from fucking her. They both enjoy their new state of expectancy.
Simon and Simone are twins and identical in almost every respect. They have moved to Paris, the City of Love, and are closer than ever before. Soon, they have fallen into the kinky lifestyles of their oversexed friends. When they meet Claire, all bets are off and they scramble to be her favorite.
A buddy of mine stayed the night at our apartment and overheard my sexy girlfriend and I having hot sex. The next morning, while watching a football game together, she turned up the heat, and we all had a wild time together.