ok first of all im 15, my penis was 6 inches, one day i was measuring it, it turned out to be 6.5, yesterday i measured it turned out to be 7 inches. my question isnt why my penis grew 1 inch in 1 week or so. my question is why my penis is so hard always. should i have sex? im still a virgin. i cannot sit in shorts beacause u can see my penis poking out hahah, helpp