Todd fell to the floor of the janitor's closet and moaned as his human body began to undergo a transformation. In his last fully conscious moments before mind numbing arousal kicked in, he realized that he had generalized the liquid now streaming through the pipes above. It didn't just effect animals.
Todd began to shift. Not as dramatically as the lizards, of course, because he was humanoid anyway, but muscles began to swell and his height began to grow. His glasses fell off as he grew, which was fine, because his vision was now perfect, and he reached down and grabbed an unfamiliar shlong that was past his usual seven inches and growing.
It only took a few moments for him but the mad scientist stood with a nine inch dick and a seven and a half foot tall body. To his astonishment, he was lean and athletic like the cobra girl. Still fully human of course.
He ducked down under the door and headed out into the hall, heart pounding. Already he heard growls, roars, and screeches. He turned one way and saw a little foot tall green anole spread out of the floor on her back in a puddle and growing bigger and more human as she masturbated.
The zookeeper! Todd stared in shock. He had forgotten her! He stared for a moment as she steadily grew in size and quickly looked away in embarassment as her little body began to tense as she came. He opened the door back into the main room and nearly tripped over the massive monitor lizard. He was growing and stretching at Todd's feet with a gasping pleasured wide open smile on his jaws. The human stared as he enlarged and humanized, his flanks thickening, his barreled body lengthening, muscle growing in, and bent down to stroke the big lizard's back. The scaly hissed and squirmed over onto his back to reveal to huge red pulsating members. As his hands grew finer and his arms longer, the reptile took both of his manhoods in each hand and began jerking eagerly, twisting and growling on the floor as he continued to grow bigger and bigger.
With a huge grin of delight, Todd explored further. He rounded the corner and gasped at the sight of the floor filled with groaning and transforming lizard people. The water was still pouring down on them, heated to a near mist from the building's increased temperature, and Todd watched as snakes, lizards, geckos, frogs, turtles, iguanas, skinks, newts, writhed and grew strong and human like. As he stood around the corner watching in amazement, he was suddenly startled out of his thoughts by a little gargoyle gecko woman barely three feet tall and still developing. He recognized her distinct scales. She had been only a few inches in size! She threw herself to her still knobby knees, gasping, and grabbed Todd's ankles.
"Creator..." She said sweetly between moans. "Oh, please, please, please! Let me thank you!"
"W-W..." Todd gasped, as the gecko opened her mouth, grabbed Todd's dick, and put it into her mouth.
The human reeled back and gasped as the little lizard cupped his balls in her thick fingers and began to suck him eagerly, her insanely flexible tongue joining in. It was all well and good until the much smaller creature choked suddenly and drew back, looking up at him in disapointment and shame as she continued to tremble and grow.
"You're too big for me." She said sheepishly.
"Hey, hey..." Todd reached down, picking her up and raising her to his chest. She eagerly cuddled in and smiled. "It's okay, little girl."
To Todd's second surprise, the gecko raised her tail and looked down between her legs. She looked up at Todd, wiggled her bum, and smiled excitedly. "Can we try?" She asked sweetly.
"Yeah, sure." Todd grinned in delight, and lowered the little growing gecko woman down on his dick. With how lubed she was, he slipped into her tight little hole without any issue, and though she was tight as hell, it wasn't a bad thing.
The human leaned back against the wall and the adorable little gecko giggled and hung on to his shoulders as they began to fuck.
All around them, the wild intensity of the changes overwhelmed the creatures in the building. Roars of sexual bliss and sharp feminine hisses began to sound out as lizards found their partners and a way to relieve their new urges.
As Todd fucked the tiny little gecko woman he noticed she was staying short and small but growing female curves and breasts. He delighted as she giggled and grinned on top of him, watching her little body bounce and tense as he humped her. It was a super enjoyable fuck, as the adorable gecko suddenly began to moan in her high pitched voice and suddenly shook in orgasm. Todd withdrew. She had come so fast! He watched her panting and breathing heavily as she sat next to him, a slick trail of her own lube pooling down her crotch. She stared at him, giggled in delight, and kissed his cheek.
A leopard gecko nearby was lying on his back with his dicks hard. She looked at Todd, he nodded and petted her head, and she gleefully darted over to the other man her own size and mounted him.
Todd laughed at the insanity as he looked around in the dripping pouring water and saw lizards of all shapes and sizes. His eyes lingered on the two mated iguanas near the other hall. They had grown absolutely enormous, exceeding man size, and were lovingly and slowly tangled in each other in sweet sexual bliss. A little frog woman had grown especially busty and was sitting against the outside of the former cages gently exploring herself. He looked over to the other wall and saw the two male cobras eagerly 69ing each other, tongues lashing on their respective dicks. It was absolutely insane.
Suddenly a huge roar shook the upstairs and Todd smiled warmly. He hoped Gretta was having a good time with her new man. Sure sounded like it.
"Excuse me..." A surprisingly shy voice suddenly got his attention. Todd turned, still at full erection, to see a shockingly huge twelve foot tall female monitor lizard he didn't knnow had been in the collection. She was so big that she had to sluch or hit the roof. He stared at her athletic build and large firm breasts in shock. "M...Mr... uh, creator... would... would you like... um... can we play?"
Blinking in amazement, Todd stood up to her stomach as she stared down at him nervously. He looked up, and realized what she was.
"Y-You're a komodo dragon!" He stared in shock. "Holy shit!"
"Oh!" She blinked beautiful yellow eyes. "Uh, yes, I think that's what they called me before." The giant kneeled down gently and smiled at Todd. This was without any doubt a shy and gentle giant. "I'm sorry... I didn't... I didn't mean to be so forward. It's just that the others and..."
Without any hesitation, Todd stood up on his very tiptoes, grabbed the giant's shoulders, and kissed the tip of her long snout. He felt her smile as her giant clawed hand wrapped around his entire head.
This was going to be fun!