1. Jerk off before hand. Twice. 2. Focus on doing a lot of foreplay 3. Think of her pleasure more than yours 4. Try to turn the sex into a abs workout 5. Don't do all this every time. It makes sex less fun for you but you last longer and she'll likely enjoy it more. Do this every other/third time
im a girl but my boyfriend said you kind of just have to push past the inital feeling of wanting to bust. its like if you're running, you'll get winded in the first couple minutes and want to tap out. but once you get a rhythm going and you're steady you can last for a pretty long time