When you're competing on who has the strongest arm to endure hours of pumping, it can get tiring unlike these two, they've already reached up so high and they can get even higher from what it seems. I wonder how much more helium they can get pumping in them before one of the gets tired out or they can endlessly float higher and higher up further to the stratosphere....

Commissioned by MrToaster886 featuring malhaild
Thank you for commissioning

Caerulus © mrtoaster886
Malhaild © malhaild
Image copyright of Dralffeine, June 2016