Premature ejaculation is when you ejaculate too quickly instead of being able to maintain an erection and have sex for a decent amount of time. What this "decent" amount of time is I have no idea. It has nothing to do with ejaculating inside a vagina. Unless you want your girl to get pregnant id strongly advise against that by the way.

A problem that I have with "premature ejaculation" is that is seems most women cant orgasm through sex anyway so its prolly better for them if we do just ejaculate prematurely. Any thoughts?

After I have sex a number of times in one day I become a porn star and can keep going and going and going until my gf is like "i want you to come". Thats prolly because she is now bored because ive been vigorously doing her for like 15 minutes and im sweating like a pig, meanwhile shes no where near orgasm. Cruel isnt it?

Next time this happens im making sure shes on top.

Jesus christ, you're bitter.

Premature ejaculation is simply when a guy comes very shortly after penetration begins, and thus the couple are unable to enjoy intercourse to its full potential.

Ah, ok. So when the premature ejaculation occurs ... The errection goes down, I assume. Hmm, makes sense. Thanks.