iam 25 years male.i masturbate thrice a week...when i masturbate i ejaculate within 2mintues or sometimes within a minute.
i still never had sexual intercourse.,,,,but when i keep my penis on my girl friend vagina and give my penis up down movement i ejaculate within a minute......is this pre mature ejaculation...can u help me in this matter
Yes, it is probably a kind of premature ejaculation, even if the official definition of premature ejaculation is when you come within 30 seconds.
Read about premature ejaculation.