My gf is a nympho already. She gets frustrated when we have sex and i squirt after 3 or 4 minutes. I think she would love it if she could cum a few times and still be getting more.
...It sounds like you have the issues, not her,
littlesquirt. Premature ejaculation has a lot of causes, but most all of them are correctable if you desire to address it. To start with, try giving her a lot more oral sex first ... she needs to be very wet or her dryer pussy will just jerk you off in 3-4 minutes ...
...Second, it sounds like you need to concentrate more on pleasing her than getting your own nuts off ...
...Thirdly, try this little trick ... when you're making love to your lady and feel yourself approaching ejaculation, take your index finger and thumb and squeeze the base of your cock rather hard for about 10 seconds .... that will delay the ejaculation a few minutes longer.
...And lastly, find out exact positions feel best for her and which ones cause you to ejaculate fastest ... she's probably got a nice G-spot if you spend a little time looking for it with your fingers ... she'll tell you when you hit it, and you can focus your cock at rubbing that spot more often, helping her reach her own orgasms sooner.
...Your lady doesn't sound like she's a nympho ... it sounds like she
is sexually frustrated. That could harm the longevity of your relationship with her and other ladies you have sex with ... its time to learn how to become more sensual and "make love", and not how to get yourself off.