The homeless man let out a moan. He didn't mean too, but the stretching, the warmth, the growth, it was too much for him to handle. Somehow, even being unable to move, completely surrendered to the man behind the controls, he was losing fear and falling into a state of lust.
While his clothes were already torn, they quickly now started ripping and falling into tatters. Still the idea turned him. He pictured an anime he had seen where the main character flexed so hard his clothes burst off. Even though he couldn't move he tried, and to his surprise his body exploded with enough size to wave off all remaining clothes.
There he lay, naked, growing. His eyes stared in ecstacy at the thick slabs of muscle covering his body. He wondered if it was going to stop. He wondered what his so called 'Master' would do to him. He wondered if he'd ever be allowed control of his own body again. But those thoughts came and went in waves as the thoughts of growing muscle flooded his mind. It further increased his erection in a hurry as the table before him started to creak loudly. 'Was he really growing that much?'
The Master looked on at his subject and smilled. He struck a pose and took in the growth before him. His planning, taking hold successfully.