I start out with a liter of sprite and an empty belly. Listen to the huge burps I get from this bubbly beverage. These might be some of my loudest burps. A little ways in, I pull up my skirt and show off my belly while I drink and belch. The little belly jiggles really seem to strengthen my burping power. As I get fuller and fuller, you can start to hear the fizz in my burps. I would love to try to do 1.5 liters of Sprite next time cause this was the easiest liter I've done so far. Maybe I can finally work my way back up to 2 liters.