Responses
If it was alpha x alpha it might be this one https://www.mangago.me/read-manga/good_night_baby/
beta
If it was alpha x alpha it might be this one https://www.mangago.me/read-manga/good_night_baby/
There’s this bl that I was reading where there’s 2 twins and one the twins takes the place of his brother to marry this crazy guy, I think this was omegaverse