Jerking off, takes about a minute and a half, less if I lube up first. Vagisex: maybe about a minute once I penetrate and start my heavy pelvic thrusting, usually a little less. Takes me much longer to get hard enough to penetrate with a woman than with a guy. Male anal sex is intensely exciting and even with a condom, I'm not going to last more than 30 seconds once I penetrate, unless I pull out. Mutual masturbation/ cock sucking with the guys, better than an hour with edging. But once I reach the point of no return where I HAVE to cum, just a few seconds of intense, rapid jerking off and I'm spraying everywhere. Always thought I was a premature ejaculator until I started asking guys to be honest, and I'm about average. Won't make it in the porn world, alas, but the answers are honest.