A couple return to hometown for a high school reunion. The after-party at old classmate's home eventually evolves into sex with other former classmates. At the end of the story, the couple return to their current home to begin a family.
There is friction between the husband and the male classmate whose home is where the after-party is held. The wife ends up in a threesome with that classmate. The husband has his fun too.
I'm mainly curious to remember the author's name.
