
This story kind of reminds me of the novel 'A Straight Guy's Nightmare' except the MC is an intersex instead of an omega and it's pretty fucking steamy too :p

https://www.novelupdates.com/series/a-straight-guys-nightmare/
Here you go
Just a warning though, the story is not very good imo and has rape in it, I suggest to read it only for the smut haha
Ok that seme is not worthy of our sexy hot caring gentle dilf uke (-_- )ノ⌒┫ ┻ ┣ ┳