It's been a while since I filled up my belly to the brim so I guzzled down a whole liter of my favorite seltzer. As the carbonation hit my belly, it started expanding so rapidly and delicious burps aggressively exited my mouth. "FUCK" I repeat as my belly swells up with seltzer. I was amazed with how quickly I achieved my result, having to lay back further and further as my belly grew rounder and heavier and I began to feel lazy and sloppy sexy.