Image imported from derpibooru 
Original Description:
 
Oh dear, even once that greedy hydra has blown his blimp up so big he’s squishing into the walls and lifting the creaky pooltoy into the ceiling, they just can’t get enough~ Once of the heads grabbing the air tank they puffed out of to start drinking from it once again, their gut swelling out to squish down into their big pegasus blimp, and the air swirling around only to flow right back out through another head still huffing Twintails bigger~
 
Knowing the hydra, it probably won’t stop even once the tank should be empty, the room absolutely full of overblown pegasus, and he’s been squished snugly into his blimp. But I don’t think Twintails would want it any other way~