Science bounces forward! Scientists actually study the movement of breasts in motion. Breasts actually move just as much during a slow jog or a fast sprint, and breasts move in three dimensions including forward and back. The larger the breasts are, the more pressure it puts on the shoulders. This often keeps busty girls away from sporting activities. In the second chapter of the Voluptuous feature movie Bounce Baby Bounce!, our hero Anthony has completely lost his mind studying the science of boobs. He claims he's invented a device that can control hot girls. He can slow them down. He can speed them up. We told you. The man is coo-coo.