A girl chugging alot of soda but being unable to burp causing her to bloat due to it until she's huge, extra points if she's shaken beforehand ——— Super good classic stuff, the dull ache of the building pressure with no apparent end. At the mercy of their own poorly thought out actions. Personally I think it's more fun when the person refuses to burp due to being too reserved/proper or embarrassed at the idea but random inability to is still good!!!!