How does a man not have an orgasm before the girl does??

The only thing I can think of is lots of fore play for the girl BEFORE you stick it in... Or try a cock ring that fits snug around the base of the penis and keeps the erection longer before it ejaculates which means more pleasure for the girl which could mean her orgasm before yours. Sometimes condoms can work in the same way.

1st how old are you?

Most men have learned how to control their orgasoms by masturbating. It is like training a muscle and practice will make it perfect.

I agree with AbL6669 - It is amazing what a little practice can do :)

If you aren't able to bring her to orgasm with your pants on, don't bother taking them off. Penises are great but they do not feel like vaginas. A vagina feels a lot like the inside of your mouth, not terribly orgasmic. Her penis is the clitoris. It has the same nerve endings as your penis. In fact, it is a penis that gets hard and everything. When you are ramming your penis in and out of her vagina, she is getting little or no stimulation to her penis. That is why you orgasm and she does not.

How to have better sex - and come second:
(An abbreviated guide for those who don't want to be a statistic in bed.)

1) Foreplay
Foreplay IS Sex.
Most of the time, unless a woman just jumps your bones and wants it then and there... And will get herself off even if you don't - foreplay is a mandatory.

Foreplay can be non-touching: intimate talk, eye contact, long pauses in an intimate conversation, and body language.

Foreplay can be touching: Touch your own hair (often her), a leg, small of back, crease in neck... look for spots that she doesn't expect you to touch as well and go slow.

Foreplay can be nearly orgasmic and orgasmic: Now work your way to upper thighs and lips. Long kisses... eventually a light touch of genitals. (if you are over 18 :-) and build and follow her breaths and moans to learn what she wants more of.

2) Climax options: If you let her climax first through hand-stimulation, it will allow you to go forward and she will be very receptive. Don't jump on her like a carnival ride, but ease in and make eye contact to let her know she is still the most important thing to you. She may just orgasm again.

NOTE: Some women cannot orgasm through intercourse alone. That is normal. If so, they may need a "toy" or a special position or manual stimulation by you or her (*she needs to express this. You are not a mind-reader)

3) This is perhaps most vital if the foreplay still does not leave her "getting there first": Masturbate 20 minutes or so before you have intercourse. This will ensure you do not climax too quickly. Then you can enjoy #1 and #2 more.

4) She may wish to masturbate during sex as well sometimes... Also normal... She may get closer to climaxing and you can join at the time she "needs you most"...

Most important: Wear protection and get good grades and/or work on your career!

**Some people say think of ugly things and do math problems in your head is one way to go - but who wabnts to do that while having intimate time?

As you get older, you will learn more control... Heck, one day you may wish you could orgasm so fast!

Foreplay, foreplay , foreplay, foreplay, foreplay.

Change position occasionally to give yourself a little break once it a while, make yourself last longer.