Hi, i'm now 16 but last year i started my sexual life. my concern it's that i use to ejaculate to fast some time i only least 10- 15 minutes but other times just with the penetration or after penetration 1 to 3 minutes i ejaculated. i'm now 16 and i've been 1 year without doing sex, but when i'm mastrubating i steel ejaculate too fast but can be that becuase i do it to fast?. what can i do to least more time during sex, i'm starting my sexual life again with my new girlfriend and i want to least more than some minutes. what can i do, can be because of my age?