The Cuckolder — A Universe from the Mind of JoeTortuga

A Story of the Cuckolder.
Brian Erhard doesn't believe in relationships for himself, he's the one who breaks them. Still, he only has sex with people in a committed relationship. When he meets the submissive Madeline in a bar, it seems like things might change. This story does have some MM sex, but always from the Brian's dominant point of view.

A Story of the Cuckolder.
At fifteen, Brian's family moved to Cleveland. He's trying to save enough money from his lawn care business to buy a car. His (young, married, sexy) next door neighbor offers to pay him with other currency. This is the first of planned trilogy detailing Brian's origin as The Cuckolder. This is a BDSM-light story, but there are scenes which occur later, near the end.