A long time ago someone said they liked to mentally masturbate which I took as a joke. Recently though when I was bored and horny the memory popped into my head and so I gave it a try. I was in a place where i couldn’t actually masturbate but was sitting waiting and wouldn’t be disturbed by anyone. So I thought about sex. But more specifically I thought very precisely about what it would feel like and look like to be having sex right there and then. I let myself get hard and I started to breathe in rhythm with my imagination. After awhile I felt as though I was actually close to an orgasm. I backed off and looked around. I could put on my long coat and go to my car and go home if anything happened so ok. I sat up a bit taller and by shifting I felt a lot of precum drip and thought “I think you can actually do this” So I concentrated again, this time imagining again very specifically penetrating her in a wet rhythmic way with deliberate inhalations and exhalations timed with the imagined thrusts. The key was on the exhale to imagine thrusting my pelvis up but not actually do it. I noticed my penis started to involuntarily pulse sometimes. A little more precum each time. I got to the point where I felt the tingly sensation like I was just about to cum but didn’t right away. I also felt really calm and good. And then I shifted slightly in my chair and it happened. It was slow. I could feel my cock throb and pulse without my control. I tried to hold it back but it was too late. I came but it wasn’t an orgasm. Instead it seemed like I had separated the two. I’ve found I can repeat this with enough concentration, and I’ve gotten better at not actually doing the ejaculation part. Has anyone else done this, can both men and women do it?