Well, pretty much 90 times a day someone between the ages of 13 and 70 asks if his dick size is ok. As a woman, I will go out on a limb here and say, we are getting really bored of this question. So, here's the real honest truth about your penis size.
1. You can't change it. So worrying about it is only going to make you miserable. Please, don't worry.
2. Almost every single dick a woman ever sees is going to be within one inch of absolute average. The average size of the peen is SO common, that really very few men, statistically, are above it or below it by much.
3. Yes, there are some women (and men) who really like large penises. A lot of that has to do with how much we TALK about how big imposing circus weeners are so powerful and taboo and sexy. Eroticizing something like that is going to make it erotic for some people. That's just how it is. Refer to #1.
4. Only about 30% of women can even have an orgasm from stuff you do with your dick, no matter WHAT size it is. You aren't broken. We aren't broken. The female orgasm requires stimulation to the clitoris, and the penis really doesn't stimulate the clitoris much. 70% of women need to be orally or manually stimulated to orgasm before the penis even enters the picture, or manually stimulated in addition to the doodle diddling in the doodle hole. Once we HAVE an orgasm, our vaginas are felling all kinds of good, and THEN your dick is going to feel INCREDIBLE, and we might orgasm again.
In conclusion, your dick is probably just fine if it's clean (like, please take a shower before you ask us to put our mouths on it. Your ball sweat does not taste sexy), disease free, wearing a condom, and there's plenty of lube.
Bonus: Foreskins are cool. Eventually American girls will get used to them, because circumcision rates are going down. Yay for foreskins.
Bonus 2: Your tallywhackers do not stretch our vaginas out, or make our labia get extra flappy(?). Vaginas are made for a whole baby human to come out and then snap back into shape. But you can hurt us if your donger is not lubricated enough, so ALWAYS have condom-safe lube handy. (If you hurt us, you open micro abrasions in the vaginal wall which make us more susceptible to STDs, and STDs are sooooo NOT sexy.)
Bonus 3: Bends or curves in your member are pretty normal if they are not extreme. You should be having an annual physical, so let the doc tell you if your have a severe curve, called a stricture, otherwise, don't worry about it.
I'm being all silly about it, but I really want guys to know their dicks are just fine. Really, just fine. Don't worry so much.