With the store fairly quiet, Derek decides to slip the socks onto his feet and then with a grin puts his shoes back on. He takes a seat and awaits the transformation that he hopes will soon occur.
He does feel a static charge, after a minute. His cock begins to throb as he takes in every second of the strange feeling. He had always wanted to feel what it was like to transform. It had been a fantasy for as long as he could remember. There were several, actually. Transforming into a giant, or a werewolf, or even just adding weight. But right now, he'd settle for a pair of big feet.
His own shoes felt tight and for a moment he cringed as his feet ran out of room. But then he heard a stretching sound and looked down to see the outline of his toes forming on the ends of his leather loafers. His cock began to throb harder as he saw this, the feeling was better then any orgasm he had ever experienced.
One by one, the stitching began to pop on the ends of the loafers, and he could begin to see the white from his socks bursting through like sunlight from a cloud. The stretching sound began to turn into a ripping sound as his feet began another growth spurt. The loafers begain to shred at the sides until at last his massive feet burst free, along with a fairly large ejaculation in Derek's pants.
He moaned in ecstacy and stared down his now massive feet. He didn't care what anyone thought if they came into the store and saw him there. He had been allowed to live a fantasy, and it was better then he could have ever hoped for.
Just then, he heard the sound of two voices in the background. He composed himself and looked over to see two teens pointing at the new release sneakers. They were both small, about 5' 6" or so, but cute in a skaterish kind of way. Derek wondered what it would be like to give these two guys massive feet. They were both wearing airwalks, and looked to wear a size 7 or 8.
He quickly runs into the stock room and finds a pair of size 15 sneakers. He takes off the socks and stuffs them in his pocket. He then puts on the sneakers and approaches the two skaters. "What can I do for you guys today?"
The young guy with spiky blond hair smiles. "We need some news shoes, we keep tearing through these on our boards."
Derek looks down and can see small holes in both guys sneakers from too much skating. The young spiky haired blonde wiggles his toes and Derek can see he isn't wearing any socks. 'Oh man, I would love to see those small feet get large!' He thinks to himself. "Sure thing guys, let me show you something awesome." He points to the empty chairs by the airwalk and van sneakers. "Have a seat."