Well I can't quite match the speed of you lot, my personal best was the first time I went out with my second girlfriend. We met in a pub but she was uncomfortable there because both her father and fiancé worked nearby, so we shot off, and were soon parked in a nice quiet, lonely spot. Pretty soon things started happening, and within a short time the clothes were off and we were shagging each other silly. So I suppose that was within a couple of hours of meeting her in the pub (in fact I think the pubs were still open when we finished!)
Of course this was cheating really as we had been working together for a year before I asked her out. Many years later I was talking to another new girlfriend who said she had only ever fucked on a first date once. I said me too, but it didn't really count because we had already known each other for a year. All she said was, "Promise me you won't wait a year!"
(Full story is in my
"More Conquests" thread:
https://forum.oneclickchicks.com/sho...d.php?t=216588)