What do YOU call someone you're having casual sex with?

Not as twisted as "sister" or "brother". A couple of kids who were two years older then me uses to live up the street, and at about 14 or 15 they used to both brag about how they were "doing" each other (in vivid detail). I don't know if it was true or not (I suspect it was), but what did they end up calling each other on that one? That, kids, is twisted. (Never knew what happened to them, as they moved away when I turned 15 or so).

It happens. My hubbys FWB came from the fact he started falling for a girl on day one in his Chem/Bio classes in college. She explained she was from the "other coast" and just there on a single semester exchange. She was not looking for any relationship (she never said anything other then "she had a LIFE" back home...but he knew that meant boyfriend), but they both still felt "chemistry" and were doing it by day three of that semester. In fact, he came over once, at her request, after class. She was on the phone when he got there (he is sure, from what he could hear, it was a boyfriend), but when he came in she made a "silent" gesture with her finger to her lips, bent over the table in her apartment, dropped her pants, held the phone between her ear and shoulder, while pulling her butt cheeks apart and gesturing with her finger for him to anally take her...then and there, while she was still on the phone, which he did. That was a FWB...not a "girlfriend". Once she hung up, he still recalls her grinding into him extra hard, till he had a wild orgasm, after which she pulled him out, turned around to face him, gave him a huge, wet tongue kiss, dropped to her knees and promptly sucked him off till he got hard again and came again. It was his first ever ATM experience and was so "dirty and hot", he knew that she was totally over the top turned on at having been speaking to her "real" boyfriend, while "doing" him.

I like Coitus Companion too!