help finding something

i remember some stuff about it but not the name. it was about a two friends who were living together (im not sure if they were dating in the beginning) and a guy moves in near them and one of them thinks the other is having sex with him.

the bottom was more muscular and taller than the top, who was kinda skinny and i think blond?? the bottom liked it rough though and the two kinda had a dom/sub relationship. the bottom also had tattoos and was a gangster due to his father-figure being a mafia leader. he had dark hair and i remember him not being very smart and constantly got railed in his office. the guy who moved in also worked with him and their office wasnt very good, kinda dingy i guess.