Their First Swap
Swinger Erotica Short Story, Couple Swap, Explicit Hotwife Audio

This audiobook is narrated by an AI Voice.
Two sets of car keys on a table and two rooms in one house. Sylvie, forty, ends up in the back bedroom with Vance, thirty-seven, and her husband Theodore is on the other side of a wall she can hear straight through.

Also by Ivy Marlow: more explicit stories are available as ebooks at Apple Books, Kobo, Barnes & Noble and other ebook stores.