How do i cum quick?

I am male and was wondering what is the quickest way to cum when having intercourse, because sometimes I dont cum inside my girlfriend and we will masterbate each other untill we cum?

dude...not coming right away is a GOOD thing...it makes you able to last longer to have sex more...you 2 might not appreciate it now but you will later...but if you want to be able to c*m quicker just masterbate a lot and do it only to c*m.

um...ok.

you have to have the right frame of mind