Non-exclusive [pjm fanfic/smut]

"It quickly became a game, whoever falls in love first, loses." It was supposed to be purely sex. We didn't have titles, and we weren't exclusive. We were just friends. So whatever happens in the bedroom, stays in the bedroom... right? Then why does it hurt so much? If we were 'nothing' to begin with. 03/15/2019 - xx...