my female friends say 5 minutes is enough for them. I thought this 3 minute go might be too short sometimes though, even for us men. not sure why I'm saying even for men because it takes me sometimes half an hour. usually it's 15 minutes with a woman. on my own it's probably around that 90 second mark though. but that's the idea, you usually do it to get rid of the need, not to enjoy the best party ever. although I've had some wild nights on my own. even 10 times once... if you want to get it on for longer with a woman, like the whole night, you just need to eat between numbers, and don't worry, you'll last longer and longer... my first number with a woman after a while with the first girl I did use to make love to, lasted 15 minutes, despite my worry alcohol or nervousness might get in the way. just remember to have fun...