>>24205Ones rubber and the others gum. So both if they're tight enough.
Helens skin would have to be pushed to absolute limit to even achieve this, while bubble gum is super soft so blowing her up would be as simple as just breathe from your lungs. Although that process would take longer!
But both girls could be made transparent and burst quite well. But if it was a contest it would definitely be the bubble girl bursting first.
Helens skin gives me tire rubber vibes, while the princess has skin as soft as her personality. Helen would be probably have size not even by the time bubblegums at her breaking point.
The softer more lighter a material is the less durable. It's a conflict going on in inventing for millennia! Bubble gum just isn't as strong as rubber. The princess is the most easy girl to pop giving her durability is zip to zero.
But not that it matters. It's canon that she can reform with ease if you just give her some time. Just scoop her up and She'll be back to normal in a month.