While I do not know where and under what circumstances you are encountering these other boys, I might also add that the size of the flaccid state of the male organ does not always telegraph the size of the erect state of the organ.
Depending on your ethnic heritage size can vary a lot with I think men from India and Japan being the smallest statistically. There are nutrients that you can take such as L-Arginine that can help the health of your cardiovascular system and in the process that of blood flow in your penis. With the added side effect of increasing the size of your penis in it's flacid state do to blood flow.
Size... I think in school women usually have showers stalls, as well as at gyms. Men usually have open shower bays. It creates all types of nuerosis in boys.
If you don't believe me check the men's health section sometimes. It is almost all questions that I am certain result from size or hygiene.
Oh, and we aren't doctors. Post your question on the Expert Forum if you want a doctor's opinion:
http://www.medhelp.org/forums/show/119
What SixStringer said.
I'm wondering...how do you know the sizes of these other guys? Did you see them in that state? Or are you going by what they say? If you're going by what they say, you shouldn't necessarily believe them (they may be exaggerating).
lemme tell you something...my husband is about 8 inches long and it is waaay too big for me. i have had relations with men who are about your size and it feels much better. my husband has to ahem "work me with his fingers" a bit, to put it as tactfully as i can, to sort of, "streach me out" a bit...oh gosh im blushing...hahaha....before he can penetrate me with his "organ" so dont feel bad, most girls, the kind of girls you should be interested in, will be perfectly satisfied with that size. ;)
No, there is no way to make your organ bigger. But the good news is that you are of normal size, and, believe it or not, size does not matter. Your organ is only one of several body parts that can be used to make a woman happy, along with your lips, tongue, fingers, and so on. Keeping healthy in general is prime by following good nutrition and exercise. Do not concentrate only on your sex organ, as this will distract you from other important things with interpersonal relationships.