French for "balls," "couilles" gets a literal workout in this gay boxing match. The men, clad in tight jeans, don boxing gloves and set their sights on each other's precious package. With calculated, powerful hits, they strike their target, their denim-clad crotches absorbing the force. The coupling of pain and pleasure is undeniable, as they groan and grow harder with each ball-busting "coup." The gloves come off, and the men finish what they started, their sweat-soaked bodies slick as they push each other's limits in this intense, kinky encounter.