When I was a teenager and not able to crank one out consistently, yeah it happened several times, although it was never the case that I had no idea what had happened. There was always a sex dream involved, and since I typically woke up as soon as the "mess" happened it was easy to remember the dream.Yeah, I have woke up from a sex dream and taken care of business, but never gotten off with zero contact. I did it in my pants once in a strip club, but that was after the chick did nothing but grind on me for like 5 straight songs. Has anyone actually woke up with a bunch of semen in their underwear and had no idea what happened?
After moving out and being able to either have sex or crank one out anytime I want, I haven't had one (to completion that is) in decades, so I sort of assume it is more of a release thing than anything else. Or maybe I don't sleep as soundly as I used to, and wake up before I can finish? Who knows? But yeah, it used to happen all the time as a teenager.