Do swimmers develope more than dancers ?

Ok. So. I'm 13 a 30a no period. 4'11" ish abd 70 pounds. I'm a very active dancer. I dance 3 or 4 days a week. I've been doing this for 11 years. Apparently I have a good metabolism. I can eat whatever and never gain a pound. My best friend is a swimmer. She is 13 also. But she's like a 34a has her period 5'1" ish and like 90 pounds. She's on a swim team and swims almost every day. This is technically how all my friends are to me. Taller andmore developed. I know I will eventually get some where. But I just wanted to know??