Slow might be better, now that I think about it.
After that last post, I really have to say I think SLOW is the best. Don't get me wrong, fast is just as good, and everything has it's time and place, but when it's time to CUM, I think going slow - holding it back with everything you've got - and then hitting it full throttle just as you spill over the top, always feels like the hardest orgasm. i get the most volume of semen too, like that. just a thought