Jeff hummed. He didn’t want to go to fast... nor too slow. Obviously that meant setting the machine to medium was the way to go.
Leaning forward he grasped the electric pump’s switch, and quickly flipped it into the position for medium speed inflation, the machine taking a moment to start up as air rushed into Jeff via his nozzle.
The sensation was almost overwhelming, moaning and groaning as he inflated rather quickly despite the medium speed. His bulging stomach grew even larger, rounder as his new small breasts grew in size, filling with air... until it was flushed to a new location.
His legs started to inflate as several pops emanated from his legs and his hips, Jeff moaning as his beck started to inflate behind him, pushing him upright as he started to truely round out. He could feel *something* pushing out of his ass region, and his feet were changing again.
Quickly Jeff reached for, and shut off, the air pump again, panting as he sat on ground...
Well sat wasn’t the right word anymore, he could clearly see, and feel, his torso below his bulging airy breasts was a sphere, including his back region. His legs had actually been forced to the sides his his sphere shaped body. But something had changed, he could feel it. He just had to see it.