Rick stared at his growing surroundings with shock for a moment before it sank in just what was happening. As his shirt fell over his feet and his underwear slipped down to the floor, the chemist gasped in realization. He was shrinking in size! His bones, tissue, organs, all synchronous and in perfect proportion! He had done it! His organic shrinking chemical had worked!
He gulped as he looked down at himself sinking into his own pile of clothes and stared up at the desk that was now the scale of a apartment building to him. He blinked and threw off his giant shirt, startled as he stepped into the nude and found his cock was erect and throbbing with excitement. Nothing he could do now except ride it out. He blushed as it felt better the smaller he got. Only two feet tall now and still dwindling. He prayed it would stop. What an irony to have perfected his formula only to vanish from it.
No, he realized, it was slowing. Thank God! As he fell to a little over twelve inches tall he felt a strong pulling and gasped in blushing surprise as erotic feelings flooded his now doll sized body. His cock throbbed in response and began to leak pre. He tried to ignore it, as the wonderful sinking feeling began to subside and the last few pulsations of shrinking brought him down to only six inches tall.
He opened his eyes and stared around the basement, amazed. The familiar surroundings of his basement laboratory were gigantic and strange. He knew it all, but it was still new.
He checked himself over and marvelled at his perfect success. His body was scaled perfectly, still intact, but smaller. “Incredible...” He whispered, startled by his own squeaky high pitched voice. He saw the last vestiges of pink fog vanish through the open windows and with a start he realized that anybody else who was exposed to it might start shrinking too. Although if he had gotten a concentrated whiff of it down here, he couldn't imagine it had the potency to shrink anybody quite as small as he had become.
Damn! He was so small! He stepped out of his pile of clothes, still hard, and grinned like an idiot as he looked up at his giant desk chair. He needed his notes, and more importantly his chemicals if he had any hope to return to regular size.
But first... he had a problem to take care of. Rick sat in his own jeans, laid back, and began jerking. He couldn't think straight with his member so perky and eager. It was distracting. He gasped and squeaked as he pulled his cock up and down, letting out a startled tiny cry as he came so much faster than usual. He seed spilled over his groin and chest, and he let out a high pitched moan of relief as his member began to fade back.
As if on cue from his orgasm, Rick felt the sinking again. He stood up, dripping cum, and gasped as he began to shrink again. Oh no, he realized! He was unstable! Somehow, his orgasm had triggered more shrinking. Watching with dread and fascination, Rick shrank even farther, slowly and stopping at a very tiny two inches tall!
He stared in sudden alarm as his cock rose and swelled again, still dripping fresh cum, and his arousal returned to his tiny body.
Shit! He realized, this was a dangerous condition for the formula to create, and wholly unexpected. The shrinking caused arousal, which when relieved with climax, somehow aggravated the process to make it continue after stopping.
He had to control himself. He gulped and tried to ignore his throbbing cock. Embarrassed, and now properly scared, Rick tried to focus on the task of getting on top of his table, not aided by his new and even smaller stature. He dried off his cum on his massive shirt and took a few minutes to sit and concentrate. He had to work past the blinding arousal. Or else who knew what could happen!