Luna plays with her manual pump. After sticking it in her mouth, she begins to inject air down her esophagus until her stomach, which jiggles with each pumping. The continuous, well-timed pumps of air begin to inflate Luna's belly and at its peak it destroys the stockings she was wearing.

Having reached her limit, Luna checks her internal pressure with the sphygmomanometer and then begins to press her hands firmly on her bloated tummy, letting the air flow out from her mouth with deep sighs, making her belly return to the way it was at the beginning of the video.