There was a science fiction movie from the 70s about the future where they had this machine that makes you have an orgasm. Couples would go in this machine for a quickie and then get on with their lives. My hour long commute train ride has made me think of this topic. I think the limiting factor for us guys regarding the amount of sex we have is the recovery period. I can't speak for other guys, but for me twice a day is pushing it. I know I know, there's always guys that will come into this thread and pretend like they can do 5 or 6 times. But in the real world, I think doing it 3 times is probably the max. Now, with this machine, I can just sit in there for hours and hours enjoying hours of orgasms each day. Ok, I realize by now I'm not making as much sense as I want. But damn it, it's a long train ride.