I was trying to think back to see if this happened, and it's true...there were girls in the social circle that at least hopped from one guy to another, but more in a longish-term thing (for college). Like one girl fukked a friend of mine for a bit, then started fukking and dating another mutual friend, they were buddies and didn't care as far as I could tell. Just a couple of dopey stoners having fun. Happened with a few girls/guys. Everybody got theirs. Obviously in high school it happens because you're in a bubble. The older you get the more segmented your circles become. Of course there were always other chicks from outside the social circle as well.
Personally I steered clear and fukked more outside my circle, not sure why.