1030 Inflate me

Foxy Sanie is curious about how it would feel, to been blown up - with stretched clothes and a really big belly. She puts a balloon under her comfy pyjama and starts to blow. She's enjoying this feeling so much, that she lets the air out and blows it up again a couple of times. How big can she become? Foxy is blowing and blowing and her belly grows and grows. But then it pops - of course. But what would happen, when she puts that blowing tube right into her belly button?