how come i last longer in bed then masturbating?

Yeah there was that short little surveillence video they showed where he said he was telling his girlfriend about the joke he told.

He either:

A. Has a problem with authority.

B. Is so insecure in his relationship that he thought constant communication was more important than following his "Dream".

While you masturbate there is the comfort of being in your own world with no pressure. There is a chance of you thinking too much and not focusing on the sex with the women you're sleeping with.

While you are masturbating you have you and only you to focus on. You can just think and think and think with no feedback from your partner. Your imagination is at work full force so the fantasy is the dream and you can do anything you want in a fantasy right? In the real world you can not or some people do not have the courage to ask their partner to do a certain sexual act. There are many people with fetishes or dreams they want to play out but can't because the fear of rejection, plus it takes guts to ask a woman if you can do this or that with them. Many women/girls hate certain things and they without a doubt will tell you without hesitation. So anyways, you are your own boss when you are masturbating as you make your own fantasies come to mind they feel so good and it stimulates your mind way more then when you're doing it with the person. Like they say, " It's all up here." Pointing to head.

Speed is the short & simple answer. You can pump your hand up and down a lot faster than you can move your waist/hips back and forth and so you simply get off quicker when masturbating than with sex........regardless of how hot she may be.

The best solution is to gain control over it. As someone already said, stop when you're getting there and relax. Pay more attention to pleasuring your mate--orally, perhaps--and avoid rubbing your penis up against anything while doing so. It will take work on your part and patience on both parts. Learn here http://endprematureejaculation.enle.info/?s0l8

As a last resort, some antidepressants curb sexual functioning with the intention of learning the pleasure of restraint after which you could taper off them. Here's your goal: the longer you can delay your orgasm, the more intense it will be. So it isn't just a matter of satisfying your mate. This is the main reason some claim stoned sex is better, unlike drunk sex which can leave you unable to perform (brewer's droop). You enjoy exploring each other longer. And remember, oral isn't just one place. It's all over, paying particular attention to kissing, and TALK about what each of you like. Strange how people don't talk about sex when they're the ones doing it.

Maybe your body is so used to masturbating but not sex.

That is good that you last long during sex. I be lucky if I can last 2 minutes during sex.