Responses
he liked the seme but thought that he would be top ,, but became bottom- https://www.mangago.zone/read-manga/kocchi_muite_waratte/
uke had always been the seme until he was thriving for sex and wanted to try the back- https://www.mangago.zone/read-manga/under_the_green_light/
uke had always been top until he met mcqueen(seme)- https://www.mangago.zone/read-manga/walk_on_water/
hope this is within ur standards
any bl where the mL(Thinks he's a seme but turns to be a uke at the end of the story) likes a guy but the guy gets w someone else so the ml becomes finds a guy and become a uke any recommendations like that