Finding a story I lost

I read a story of the / nature recently that I really enjoyed but forgot the name of it.

The story is about a son who watches his mom masturbate while on the phone with her lover who turns out to be a family friend. He then cancels his plans so that he can catch them having sex at the house. He then gets invited to stay the night at the lovers house and his mom realises he knows about the affair and lets him join in with future stuff.

If anyone has any ideas what this is called please leave a comment.

Have you checked your browser history? Failing that I can only suggest you use the story search feature to try and find it.

I've run into this often. I use whatever keywords I can recall from the story to use in search. I was surprised how much remembering a place and a character name could help.

Good luck!