While awake? I know people watch porn but that arouses mental stimulation. Could it ever make a man “cum” without him having sex, or touching his penis?
Ever heard of wet dreams?
I meant while they were awake.
I read this one story that was kind of pathetic about a blog writer / superfan of X rated actress and burlesque dancer Kitten Natividad(once wife of director Russ Meyer) who was so excited and aroused just to be in her presence he ejaculated in his pants while talking to her (while she was older and fully clothed). The writer who this happened to told the story and it was so mortifyingly embarrassing I can’t imagine he would have relayed it if it was not true.
Then there’s always this via Forrest Gump.
I have seen video of it.
We’ve been through this before. Yes, I’ve done it many times. It’s very powerful.
I’ve known women who could “think” themselves into an orgasm without any physical touch. I don’t see why the same couldn’t happen to a man, although I’ll admit that it would be quite unusual. FWIW, I read a science fiction novel where a series of meditations intended to let a person reach orgasm by thoughts alone was a skill taught to both boys and girls in public schools.
Ever ride the bus?
Yes, have had several many years ago, not really controllable on my end and very intense. Effect of a relationship to someone who also practices a very sexualy form of witchcraft and is very (very;) ) good at it even over a great distance 
Elvis is reported as having ejaculated into his black leather jumpsuit during one of the performances of his 1968 comeback special. Apparently a hairdryer was deployed backstage to get the suit ready for the next performance. Mind, it was quite a tight suit, so there may have been some accidental stimulation from all the on-stage gyration.
I have an ischemic spinal cord injury and I can make myself ejaculate from completely non-sexual stimulation. If I stretch my hamstring really hard, bam. I ejaculate without even being erect. Or if I get into freezing cold water, bam. Same thing.
Fortunately I can treat this issue with medication. But its definitely weird.
I should point out that, contrary to what most people think, you absolutely do not need an erection for a sexual climax, including ejaculation.
I’ve never had a wet dream but my understanding is that people who do are actually grinding the mattress (or whatever) in their sleep to provide the needed stimulation.
Sometimes, I believe, but not always.
I am a little surprised no one else has chimed in with a person experience. I had thought what happened to me was a quite common occurence.
In high school most of the girls I was with had average size breasts. I finally met a girl with enormous boobs. We were at her home alone and after a little manuel stimulation, she suggested we go to her bedroom. After finally seeing her big boobs “LIVE”, I exploded. Fortunately, at that age, it did not matter, because things were up and running in no time.