t-shirt

[steffie]

Take an old T-shirt and roll it up. Stick it down your pants until it is directly under your pussy, making sure your pants are buttoned all the way up and zipped. This allows for more constant pressure (makes the orgasm great!). Lie down on your stomach and hold it in place with your hands while you rock back and forth on it. It can be done anywhere, and all you have to do is wash the T-shirt afterwards.

[lykope]

Been there, done that/do that and wholeheartedly support this method.