Not your typical nerd and princess type story, but it has both types of people. Not your typical 'cheating wife' story either, but she does cheat. Just a little story of people who like to play -- games.
He discovered his married sister having an affair with his best friend. Instead of being shamed or apologetic, she asked him for help finding someone who could impregnate her.
Another of Mervin's Mistaken Identities Tales
When a group of friends are out drinking while camping, a case of mistaken identity occurs in a dark tent at night to the surprise of the recipient.
A beer with my new landlord ends with me sucking him off. He had caught one of my Grindr hookups leaving my place and let it slip that he hadn't had a guy suck him off in over twenty years. That was my cue to get on my knees, release his cock from his speedo and show him what he has been missing out on.