Your coworker had been gone for some time. He must have heard about the new shipment of growth juice from overseas. You get to him just in time to see him walking out of the cargo hold. He's naked, already he has a massive cock. You stare at it so long you don't see him pull a bottle to his mouth. Before you know it, his muscled body bulges, expands, growing little by little with each gulp of juice. You watch, amazed, dick throbbing in your pants. You wonder if he'll stop, but he keeps chugging, growing.