Claire Atwater was more than happy to accept an invitation to go horseback riding with her new business partner. The invitation turned out to include indoor sports as well.
A Story in the Band Parents Universe
Consider this "Abby the Flute Girl 2.0" if you want. Abby is the daughter of the band parents booster club president. Her parents have wired their bedroom for video and sound so that fellow band parents Bill and Lily can watch them fuck. Bill also gets footage of Abby having a threesome in her parents bed. That's all fun and games, but when Abby finds out Bill is fucking her mother she tries blackmail. It backfires. Unlike in Abby the Flute Girl, Billy doesn't lose control in this version.
Captain Tom Davis met Laurel, his neighbor's little girl, who was out walking her doll Betty. She'd gone around the corner and he took her back to where he Mom was out looking for her. It only increased his deep feelings for both Laurel and her Mom Sherry. He was there also, when there was a real problem and proved a help. It was Laurel's idea to announce that he was her 'Poppa' and that was all that Tom needed to ask Sherry to allow him to make it real. She did, of course.
An extended family of four men and four women are abducted and forced to have sex with each other plus their captors. They are then released and resume their normal lives.
A Story in the Dragon Age Video Games Universe
Aedan and his lover Zevran end up in a threesome with the buxom pirate queen, Isabela. How did it happen? PWP smut. Accomapnies "There and Back" but stands alone; no need to have played the game to enjoy.