Please help look for this

Looking for a story

Looking for a shortish story I read years ago. Wife’s friends son comes to stay as his college is close. Husband notices the young guy staring at his wife and encourages wife to make a move on him. He sees the guy watching his wife by the pool. Ends up sleeping with wife and comes to an agreement if he does well in college he gets things in return. Help finding this please!

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Categorized as Erotica Tagged