Ok so I looked through pages of yaoi to try and find it but I just cant.
So the uke is kinda a tsundere and hes a bounty hunter or something?? Looking for the seme, the seme is like the best of the best. He had white hair and hes a huge criminal and also a huge pervert. The entire yaoi is just smut, I dont remember much of it but i know they get married at the end, if that helps?? ( ´-｀)