Men love sex! But there is a basic problem all men suffer from that us lucky women don't... We can have multiple orgasms! Let's face it girls, after one orgasm all we want is another one. Men, however, are very different. Once they cum, they're done. Oh, it's not their fault. That's just the way they work. The key to giving a man more sexual pleasure than he is used to, is by denying him an orgasm. When his orgasm is denied, a man will be able to continue for as long as it takes to reach that much wanted release.
If you want your man to stay hard, deny him an orgasm and you will see what I mean. Here is the basic method for doing just that. You will need some basic supplies: A pair of rubber gloves (dish washing gloves work very well); Vegetable oil (it's much better and cheaper than commercial lubricants) or a cheap hand lotion.
You should tie him 'spread-eagle' if possible. You will want to have access to his perineum (the space between his balls and his anus). Once you have him securely bound. It's time to get started. Let's get one thing straight. He is NOT going to cum (if you can help it). At least not until you are ready to ride him to orgasm. Instead, he is going to be aroused to the point of exploding, but he will not be allowed to.