Bump on my leg and i dont know what it is.?

i have a bump on my right leg facing out (my mother says there is two but i dont see the second one) it hurt when i press on it and there is no discoloration on it at all. its basically just a small bump. i think is because i sit in a weird position where i have to lean my leg against something to get comfortable but i dont know what it is for sure. my friend also has a theory that it could be my weight so here is my weight and height: 310 pounds and just around 5'9' (maybe)