I vaguely remember this story, possibly from here or on Nifty but I haven’t for the life of me been able to find it at all!
Here’s the general gist of what I remember.
Protagonist is in college and receives some sort of bracelet or something from his father that will help him unlock his heritage/ancestry. He puts it on and his body becomes more muscular/hairy/manly in general. He goes to the gym to capitalise on this and ends up fucking a hot ginger guy in the locker room afterwards.
I believe it was only 2-3 chapters, but I’d really like to relocate it if anyone knows it!