The act of having sexual intercourse over time with someone that is also just a friend.
J.D. : "If you hadn't said platonic sex I would have thought that they were platonic friends and that's it."
12👍 4👎
A person someone has chosen to have as their one and only friend.
M.J. : "He doesn't get along with anyone except for his monogamous friend Lee, who coincidentally, has only one friend too."