Why are Nerds Not So attractive?

anyways i guess i consider myself a nerd. i get all A's i have buck tooth and i wear glasses, also some people call me chinky. there are groups in my school that have all these pretty girls in it and i always try to enter but when i try the dudes always say that i'm a nerd and dont belong in there. so i'm basically stuck with the other nerds. i'm currently getting braces, oh and also i'm not a good joke maker and i'm serious all the times. any help?