This story is part of "A More Perfect Union" (2) This is really the epilogue to the story "Quiet Desperation", to which I recently had trouble figuring which direction to take. In this single chapter story, Paul and Michelle recruit Stacy to become the third person in their marriage, with some delicious and surprising results.
Breaking rules is bad, being caught is worse and the punishment can be hell. Hell can even get worse or if you are very lucky, turn into something wonderful, although sometimes it comes from an unexpected source. Kelli was a cheerleader and thought she could break the rules. She was given only one chance, and it was going to be hell. She was lucky, there was someone involved who put her through hell and when it looked like hell could get a lot worse for her turned it into heaven.