With MDMA I can get it up but it is impossible to cum.
My most glorious orgasm was on LSD, though psilocybin comes a close second indeed. It kind of feels like your entire body is orgasming, like your entire body is one big nerve all of the sudden. Too bad it isn't particularly nicer for women. At least that's what they told me, it doesn't particularly increase sensitivity for them, if anything it makes sex a bit confusing and alienYeah, feels like you're going to spontaneously combust sometimes. I find its a trippy case of mind over matter. And my most glorious orgasm was psilocybin fuelled. About the most colourful experience I've ever had, one of those once in a lifetime type moments.