Jim looked at his pudgy belly and thought, "Could it be possible to move the air inside me to fill out different parts of my body?". He then says to Alice, "Well, before I do pump you up a bit, Could I try an experiment first?". Alice says, "Of course you can.". Jim smiles and then concentrates on the air inside of his body. Soon he sees the belly start to slowly shrink while he notices his muscles start to slowly grow, his leg muscles inflate larger becoming large muscular legs, his rear end gets more toned with his cock and balls growing larger, his belly continues to shrink while his pectoral muscles get larger with his arms swelling out with muscle, his belly goes flat and then inflates into a large six-pack. Jim's head starts to have a plastic look to it with the white on his chin and the red on the top, his nose blackens with the air filling his head and then with a POP! his head had gained it's true vulpine shape. Jim takes a look at his new body, he smiles when he sees that he has muscles that would make him win a Mr. Olympian contest. Grinning, Jim flexes his arm which produces a loud squeak when it was moved. He then looked to Alice and said in a surprisingly deep voice, "Do you like what you see?", with Jim doing a macho pose. Alice looks surprised and glad, "Oh Yes! I do like you now, my buff fox-boy.". Jim smiled and looked to Alice. Alice then says, "Well can I do the same thing before you blow me up?"