As a cow, Luna is used to being attached to tubes that suck something out of her body, but today she desperately wants to experience the sensation of having a tube let something into her. A hose from a staff shower will do just fine. She slips it up into her tight anus and begins to enjoy each cramp that makes her abdomen enlarge little by little. Standing up, the water follows gravity and some of it comes out of her butt, causing her belly to deflate and bulge slightly each time. Having reached the limit of endurance, Luna lets the tube fill her up completely, making her explode in a chaos of milk and water.