These numbers are kind of baffling. I understand the general sex for a few hours..as the entire sexual act. But I'm curious the actual amount of time you're penis is inserted into her and actively pumping. Thats how long I want to know.
I never literally timed it, but have had quite a few times where I just went on and on for at least an hour or more, could not cum regardless of changing positions, handjob, footjob, blowjob, piv, etc. and finally just stopped to rest, then was able to cum in a few minutes of insertion.
For total session time, I was with a lover who was really into everything I was into, very adventurous, and we did a bondage scene where she tied me and just went apeshit on me. She spanked, flogged, sucked, pushed her pussy in my face, jerked me *just* below the point of no return so many times. She could read me like a damn book. She finally untied me, and begged to be fucked. We did for a half hour, her cumming like crazy. When I finally shot it had been at least four hours of edging me, and I hadn't had sex for a few weeks. I've never shot a load like that before or since. Long thick ropes of cum, the first few over her head striking the headboard, then in her hair and face, then her tits and belly. It was an awesome and (obviously) memorable orgasm!