A paper flutters down from the steel catwalk above him and has one sentence written on it. "Strike a feminine pose"
He followed his sole command and did as such. But after two minutes of standing there feeling like an idiot only for nothing to happen he tried to walk home, naked as he was. Only one problem with that idea, his feet wouldn't work.
He looked down and saw that they were turned to solid granite and a gray, liquidy fluid was rising quickly over his legs.
"Strike a feminine pose"
He thought this in his head, this was all a part of the plan. As the fluid reached his crotch, it flattened it to a smooth plain, much like his now feminine and hairless legs. It rose to his chest, where a supple granite bosum was added onto his male figure.
He lost all control over his body as it finally reached his head. Then the next moment, poof. Everything he was, was now just a stone sculpture of a woman's form.
His master clapped as she showed herself to him. It was her greatest piece yet.
She sold him to the local gallery as a well aclaimed piece of art. Those that saw it knew what the sculptor was going for. It was a man, trapped in a permanent state of fear as he was slowly made into a woman.
Mike wasn't as calm as he thought. Nor was his pose as feminine as he thought it was.
He proceeded to stand there, forever, until the gallery sold him across the country to become part of a larger exhibit of men lured into becoming statues.