Yeah, there's a lot we don't know about dreams but they sure are interesting. And when you have a dream with strong sexual content and wake up either having a hard-on which must be released immediately or discover that you have already ejaculated there's something I do wonder. And that's has your erotic dream caused you to get to the point of no return with an ejaculation? Or, more likely, I think your body has become pent up sexually and in its relaxed state has started to produce a release of semen while producing a monster hard-on. That fully aroused state I bet has prompted your mind to drag in any old sexual images which may or may not occur to you -- could be a killer babe pleading you to get on top of her or it could be a buddy about to attack your butt, or some mixture of that. Hey, guys, it's all just sex. Wonderful, enriching natural sex. Something to be enjoyed.
In our dreams we frequently mix things up in ways which would never happen in our everyday lives. Why wouldn't dreams prompted by one being asleep but in a high state of arousal bring up all sort of unusual and/or new ideas. I say just enjoy them! And make sure you have some tissues on the night table.
manhood should be enjoyed, not proven -- gymrat44