...And they were roommates (or neighbors)

Dude smells his childhood friend/roommates's jacket and gets turned on, jacks it and gets caught. It's actually really cute and good.

Poor guy's house burns down after he's finally able to afford his own place. His only option is to ask the rich kid he went to high school with to take him in. He gets paid to be the rich guy's platonic friend, but it accidentally becomes something more. It's got some light BDSM and it's fun. One of my favorite authors.

Roommate gets app that can shrink people, makes his roommate tiny and they have sex. It's a one shot.

Dude's neighbors keep having really loud sex. He had a rough breakup, so he yells at them to shut up. Next thing he knows they're in his apartment drinking beer and both seducing him.
3 person relationship, my dude becomes the center of the sandwich.

Straight guy player pressures his gay roommate to fuck him after seeing him doing a dude in their apartment.

Boy has to deal with his rude female roommate after his scary best friend dumped his little sister on him. Now he's responsible for giving her shelter, but she's more interested in his body.

Gay boy moves to family friend's house and meets their dashing son, whom he now has to share a house with. Roommate catches him masturbating and events ensue.

Man gets hired to be another guy's pretend boyfriend and live with him, but they both start developing real feelings.

Outgoing boy convinces his shut-in roommate to go outside by saying he'd do 'anything,' but he wasn't expecting his body to be part of the deal.