Todd carefully pulled three empty glasses out of the cabinet and filled them with water from the sink. Then, carefully, with the three reptiles watching, he added only a few drops of the pink fluid into each and stirred.
"More than enough." Todd grinned. "A safe amount."
"All right." Gretta took her glass eagerly in her comically oversized hand.
"Hold on, hold on." The cobra giggled again, scurrying to the desk and handing a glass to the giant boa. He laughed as well, giddy. She picked up her own and all three stood waiting.
"What are you doing?" Todd raised an eyebrow.
"Waiting for you to tell ussss to drink." The boa laughed.
"Oh, yeah, go ahead! It's perfectly safe!"
"On three!" Gretta kneeled in the middle of the room and swayed her tail excitedly, thudding against the couch.
"Three!" The cobra giggled, and together they all downed their drinks in one steady gulp.
"Issss ssssomething suppossssed to be happening?" The boa looked himself over. He suddenly jolted and gasped, the yellow scales on his face flushing a peach. "Oh! Oh my God! Oh, there it issss...."
Gretta dropped her glass and grimaced slightly, bending over and straining, almost pulsating. "Oh, shit, Todd!"
"It's okay, baby." Todd rushed to her side, touching her shoulder and feeling it hardening and firming. "You're gonna love this."
The cobra, too, was pulsating wildly. She gasped and leaned against the deck, her tail curling down her own leg. She kicked slightly and began panting, eyes wide as hot arousal began to fill her senses. "What'sss... what'ssss....."
Todd turned and examined all three of his friends as their scaly bodies began to change. For the boa, he almost immediately began to look like he was swelling larger. He cried out roughly, raising his head back, and almost immediately sprouted two shockingly large dicks along his midsection. He grunted, gritted his jaws, and rode it out as he began to crackle and pop.
The cobra girl was in rapture, massaging her thigh and holding her chest as she began to grow even more defined and leaner.
Gretta was growing. Her muscles were swelling, her size was increasing. Her pockets of middle aged fat were melting. She grunted as her body inflated around her and she audibly pulled and strengthened. Her entire figure was improving, her curves increasing, her form tightening into a somehow more muscular but also more female shape.
Todd eyed the growing boa constrictor and watched him gasp and sputter as he flailed out of his coils and began to grow longer across the room, pulsating, swelling, going through the same process as the cobra. His two jutting red cocks were fully and throbbing. Hey... Todd had promised him fun too. He approached the snake in the corner, gently hugging the cobra on the way by as she grew more feminine, leaner, tighter, her height staying mostly the same as her chest suddenly popped out two hard nipples.
"YESSSSSSS!" Gretta managed to grunt through her clenched jaws. She too popped out nipples as two heavy round breasts began to grow on her chest. Still firming, still growing more athletic and fit, her height was now staggering. She was almost nine feet tall.
As Todd approached the giant snake, the serpent eyed him with utter pleasure, gasping wildly as his limbs started to sprout and his torso started as it had for the lady cobra. Todd eyed the other snake just to see how she was doing and his eyes widened as he saw a sexy tall and lanky snake woman with ample C cup breasts on a tight, small, and perfectly hourglassed figure.
The boa managed to smile at Todd's reaction and whimpered as his twin manhoods started to swell a little bigger...
Todd turned back and gulped at two twelve inch long members gaining even more girth and size. The weird flat and flared cocktips surged rounder and fuller. As the snake started to become a humanoid man, legs growing in, arms starting to gain size, Todd reached down and gently stroked one of the snake's penises. The boa let out a huge pathetic whimper and Todd watched as a little dribble of cum ejected down the tip and over the shaft.
"N-No!" The snake gasped. "Too ssssenssssitive! Don't want to... yet!"
Todd backed away and let him continue changing, hearing a heavy chuffing breath as he turned back and saw an enormous predatory Gretta staring at him with the most clear "fuck me" eyes he had ever seen. He actually backed away in terror for a moment. She was very easily nine feet tall and filled up the room, a mass of hard muscle and pure reptilian strength. Everything from the hard ridges to the point of her conical teeth had grown spectacularly more defined. She rumbled and crawled forward on her hands and knees.
"G-Get me Fred..." Gretta gasped, her voice now heavy, husky. "I... I want to be fucked by a huge crocodile man."
"I'm not good enough anymore?" Todd managed, standing next to the growing stretching mass of the panting boa constrictor and eyeing him nervously.
"Nope." Gretta grinned. "And that's okay, buddy."
"God damn you got huge." Todd stared in disbelief. The crocodile's huge rack and powerful muscles were beyond anything a human could hope to achieve even on steroids. And with her enhanced reptillian features and incredibly toned up female form, she deserved a man who could satisfy her now giant body.
"Yeah. Fuck." Gretta growled. "I know! Gotta... I need my man, buddy. Please."
Todd turned to the cobra girl, who had also settled into her new form, and caught her suddenly as she staggered forward into his arms. "I'll... I'll go get the crocodile, lover. Let'sssss, uh..." She giggled and kissed Todd sweetly on the lips. "Well, I'm not done with you yet."
Elegant didn't even begin to describe the cobra. She was now lithe, tall, athletic, and yet somehow tiny. Todd wrapped his hand around her arm and marvelled at how very light her build was. Well... except for her big scaly breasts.
"Hurry back." Todd smiled.
The cobra giggled girlishly and navigated Gretta's huge form to reach the door.
"N-Not to interrupt..." the boa gasped from the corner, "But I'm going to... to..."
Todd turned back to the boa and watched him fall back into the corner in helpless shame as he ejaculated a stream of cum from each of his now fourteen inch cocks. The boa gasped and tensed again as another thick jet of white went up into the air and splattered on his developing torso. His arms and legs were mostly in proportion now and he was a truly massive beast, rivalling Gretta without even having reached his full size.
The two females stared at each other and exchanged a smile of perverted shock as the cobra helped the truly massive crocodile maneuver out of the room... her thick thighs getting caught in the door frame on the way out.
Now alone with the still growing serpent, Todd ran to the bathroom and quickly came back with an executive towel, carefully cleaning up his fresh shame and wiping him down.
Still, he was changing and developing his new body, over halfway to his new form.
"Ssssss-ssssssorry..." The boa looked away in shame, taking the towel and wiping down his cocks, which refused to go down. "I couldn't... well, I couldn't help it."
"It's okay." Todd reassured him, stroking his neck and shoulder. "Maybe we should turn down the arousal from it, huh?"
The boa laughed gently. "Maybe!"
"I've, uh... never... well, I've never been with a dude." Todd gulped.
"It'ssss okay." The snake smiled at him pleasantly. "Neither have I. I jussssst know what I like."
"Next time?" Todd said sheepishly.
The snake laughed and nodded, taking Todd's hand in his own giant version and shaking it gently. "Okay!"
They stayed close to each other as the snake began to finish up and Todd watched him grow into his new form and size. Big didn't cover it. The boa was easily taller than Gretta by two feet and while lean like the cobra, he was definitively more muscular and heavier. As he started to wane down his twin erections finally started to fade. The snake looked over himself in emabarassment and sat up, flexing his new legs. "My God that wassss inssssanely intensssse."
* * *
In the other room, Gretta easily pushed the upstairs office around, literally kicking desks out of the way like toys until she had a nice clear floor to the nasty with her soon to be grown crocodile man.
Downstairs, the cobra snuck to the edge of the stairwell and to her delight she saw Fred nearby, lying against the wall and bored out of his mind as the other reptiles lounged around after having cleaned almost everything and set up a pleasant common room. She hissed sharply and caught the crocodile's attention. He recognized the noise, turned his head, and his jaw literally dropped.
"Ssssshhhhh!" She chuckled, and waved him up the stairs.