Trying to find that one High School slave erotica story

Hey everyone! Less than a month ago I came across a really long erotica on either literotica.com or sexstories.com (can’t remember).

Keeping it short, it’s about a high school kid who begins a dom-sub relationship with a girl from his school.
Few plot points: he joins a boxing club, increase his harem size, there is a Russian gang and a night club scene in it, a mention of prom and so on.

I can’t remember the name but it would be amazing if someone could help me find it. Thanks a ton!

Source: reddit.com/r/eroticliterature/comments/c7ojnf/trying_to_find_that_one_high_school_slave_erotica