Searching for story title where a Black couple dominates whites during swing session

[nudini]

Hi all. Need help with finding this story that I read here sometime. It was about a white couple who decides to swing with a Black couple. However the Black couple takes charge. The white guy watches the black guy banging his wife, but he doesn't get to reciprocate that. Instead the Black wife pegs him and in the end the Black husband fucks him in the ass to complete the domination

Would be really grateful if someone could help rediscover the story. Tried with tags and searches, but up to no avail