Hi there. Is it new? Swollen or just the way you are?
If it's new, it is more than likely just from being irritated. If you don't have any other symptoms, I wouldn't worry about it. Mine does the same thing if I use perfumey soaps or detergents. Wear loose clothes and let it breathe and avoid washing it with strongly scented soaps if you can. :)
It's likely just your mons pubis...which is the area your referring to. Some women have a puffy look and others dont. It's just genetics. Mine is like that too. As your grow it won't be so noticable.