Assistant Blow out (Patreon)

The box open up and she blow out.And why the box is still the same shape even she pop out with huge inflate shape and bigger than box without thinking. O 3o!Hmmm..... I'm not sure , this idea quite like have see this sitution from old cartoon but don't know what is it or is it really exist!?. O 3oaAnd the first pic should count it as normal?  It's look like become 2 inflate pic even not fully inflate.  ' A '!