I feel the same as the other answers the clitoris is on the outside of the vagina if you are really concerned take two fingers and pop out her clit and lick and suck away I have not met a women yet that did not like oral sex before you enter this will really start her up and give her an orgasm she will never forget same as answer above all the felling in a woman is at the front of her vagina Size does not matter!
Guys get hung up on penis size much more than girls care. If your size does not change at all in the rest of your life, you will still find plenty of women who will sleep with you as long as you are interested in what they say, concerned about them and act like you care about them, and have fun together. A lot of women's vaginas are no deeper than 5 inches anyway, and all the nerves for having an orgasm are in the front third of the vagina anyway, meaning a woman can get an orgasm from a man with a penis that is only two inches erect (probably can get one from a man whose size is even smaller than that, when it comes down to it. Many women masturbate with pressure from the outside only and no penetration of any object.) Also, there is a thing as being too big, it can actually hurt to have sex with a guy who is too wide around, or too long (it can bonk the cervix, which is the bottom end of the uterus, and that can hurt).
It's not about the physical equipment, it is about the enthusiasm. Enjoy her and care about her and think she's pretty and funny, and you'll do fine in bed.
Hi when your time comes you will be just fine, you still got a lot of growing to do , relax enjoy your teens , take care