And if you take hormones and grow breasts, it makes your chest more aerodynamic.
(j/k ironman.... all in fun)
No, wrong, big boobs are not aerodynamic, they floop around in the wind. Boobs, like leg hair, are a drag against the wind and are not aerodynamic, leg hair needs to be shaved, for men, and boobs need to be strapped back as tight as possible with racing bras.