You noticed and odd look in John’s eyes as they darted over and over again to your cleavage. "What’s with that look dearie? Like the look of my girls?" You asked taking both into your hands and squishing them together.
"I... I..." John stammered then you leaned in and hissed seductively,"If it’s a secret fetish hun then I’ll keep it safe, and happily perform whatever is on that dirty mind of yours~"
"I-It’s just..." John stammered then he paused for a moment and cleared his throat,"It’s just that... I want to know how it feels to have boobs, like... you."
John blushed and seemed humiliated as he told you this, but all these words did was give you a new idea. "Hmmm, curiosity about being a woman huh?" You exclaimed giggling a bit then said,"Well, I’d be happy to fix that."
John’s eyes widened and he cried,"W-Wait, what do yommmph..."
His words were silenced by your snout and tongue as they pressed up to his lips and you grinded your pussy up against his pelvis. As you did this you allowed your saliva to ooz into his throat and you grabbed his shaft and locked your grip on it tightly as he struggled for a bit.
You then released his mouth, but not his cock and looked to him with a toothy grin and said,"You’re gonna love this dreamy~"
John coughed and you watched him groan as your latex was slowly spreading all over his innards. You licked John’s chest and made it as sloppy as possible to spread as much of your latex to it before he knew what was happening.
"W-What... the?!" John coughed then he let out a moan as the latex latched onto his exposed flesh and started spreading all over his torso.
You smiled at him and said,"You wanted to see what it’s like to have tits from the other side, so I’m giving you just that hun." You then kissed him on the cheek and suddenly latex bursted out of his mouth, changing it into a snout like yours within seconds before he could respond.
John coughed as you saw his new teeth and forked tongue and vomited up more green latex that proceeded to overtake his entire head, turning his eyes bright yellow and covered everything down to his neck.
The latex slowly shifted and became John’s skin around his face, hardening into rubber and shaping to give off the illusion of scales. He seemed to be gasping for air right after these changes happened, and he looked up at you and screamed,"You’re crazy! Get off me you stupid bitch!!" You responded by tightening your grip around his shaft, and he let out a loud moan as his cock started dripping with pre.
"Now now, you just need to learn how incredible your body feels like I did. You’ll learn just how hot, how sexy, and how pleasurable everything is once you’re like me~" You hissed seductively then leaned in forward and whispered,"We’re sisters after all."
John’s eyes widened as you said this and the changes on his chest soon spread to his upper arms and stomach. His shoulders grew more narrow while his stomach grew slim, his belly button turning into a mere optional passage for an air nozzle, or perhaps something more.
Then came the fun part, as John’s nipples turned erect and grew slightly larger as his chest inflated with that same latex covering his body, shaping into a pair of ample breasts the same size and shape as yours. John laughed nervously as he saw this and he looked up at you and said,"Heh, I-I’ve felt them, is it over now?"
You grasped one of John’s breasts in your free hand and you slowly massaged it and heard John let out soft moans of bliss. Slowly you escalated this into groping and squeezing, which caused your rubber to squeak up against him with every motion. John moaned louder and louder until you finally gave his nipple a pinch and John let out a high pitched scream in a voice slightly higher pitched then your own.
John’s nipples then started lactating latex from them like milk, but as you pinched her nipple it spurted some up onto your tits and you giggled,"Oh my, you are a squirter aren’t you?"
"I-I... you...!" John growled up at you but then the changes reached his pelvis and you saw his expression change entirely as the latex reached his balls.
"Mmm, you seem like you’re having a hard day, so why don’t I give you a small present? You know, to wish you a whole hearted welcome to you." You hissed, flicking your tongue out and you playfully licked John’s snout with the tips of your tongue and giggled.
John’s eyes then looked down at his legs as his hips widened into childbearing proportions like yours, just before his plump ass came in causing him to slightly push up towards you on the bed. John then started panicking,"N-No! You can’t do something like that!! It’s impossi..." John cried and in one motion you pulled John’s cock and balls right off his body, and watched as the wet latex around his pelvis reshaped the area they were in into a plump fuckable pussy for pleasure.
John’s eyes widened in disbelief as he watched you as he became a she, and she whimpered,"Th-This can’t be real... I-I’m just sleeping right? I can’t actually be... this."
"Oh it’s real sister," You said as you looked and watched the latex engulf John’s cock, causing its shaft to swell up to a foot in length at a permanently erect stance, and the balls followed as they swelled up to the size of apples, and a small switch appeared at the base of the shaft.
"I hope you like your gift, it’ll help you get accustomed to how things are here. You can lick it, suck it, and jam it up into all of those nasty places. It even vibrates, and best of all it throbs and cums like an actual penis does, here try it!" You exclaimed lining John’s former cock up with her virgin sex.
"It... wait wait wait, stop!!!" John cried but it was too late, and as you shoved the green dildo into John’s cunt she cried out in ecstasy.
"There, now doesn’t that feel better little sis?" You asked getting off of John and allowing her to freely move with a dildo stuck in her pussy.
"Y-You...! I’m not your little sister!" She growled then said,"I’m your twin sister!"
You heard this and giggled,"You can be both, don’t you remember? You were born almost an hour after me!"
"I... wait, what did I just...!" John shrieked then she yelled,"I’m not... like...!"
"Like what? Human?" You asked
"Yes!!!" John yelled then she paused and grasped her head and growled,"I... can’t... think straight!!"
"Well that’s why I got you that present cutie, you gotta set it down upright first if you don’t have someone to shove it in. Here, sit up and I’ll show you dear." You said and John paused then reluctantly gave you a slight nod.
She then sat up, which pushed the dildo even deeper into her needy pussy and she moaned,"Oh... god! It's so... big! But... I’m so small, and hot!!"
"It’s just because you’re a virgin, and you’re in heat sweetie. Once you’ve been through it once it'll be easier to do it again on a real guy. You just gotta push yourself, okay?" You told her and she whined,"I-I don't think I can..."
You then gave her a sly grin and said,"Well, in that case... I think I know just what you need~" You then scooted up behind her with her slowly sprouting tail curling behind you as yours curled around her waist and your felt her soft ass in your thighs.
"S-Sister, w-what are you...?" She began, but then you covered her mouth and silenced her.
"Shh, no more words, just sit back against me, relax and just imagine me as the man of your dreams, or whatever else turns you on~" You whispered and you saw the blush come across her face and she nodded to you.
You then kissed her cheek and watched her hands and feet turn into claws like yours, just as you took hold of the dildo. "Good girl, now let’s get hot!" You hissed and you shoved the dildo into her body causing John to moan louder and ball back into you.
You smiled at this and took hold of one of John’s breasts and proceeded to start teasing it with subtle squeezes and massages.
"Mmmph... s-sister you...." She began and you hissed,"No words!"
John shut her mouth after this and allowed you to continue playing with her tits, letting out muffled moans through her lips. You turned the dildo and found the switch on the shaft, and you flipped it causing the vibrations to activate and John let out a loud and satisfying moan through the vibrations.
John then fell back against you, her tail curled around the dildo as you pressed it deeper into her pussy. "That’s it, do it! Show me how much of a bitch you are, just like me~" You hissed then John’s powerful tail thrusted the shaft in up to the base and she climaxed.
Soon, dark green latex juices covered the balls of the cock and the fake veins on the cock throbbed, and John let out one final moan of pleasure before the dildo seemed to automatically switch off.
"There, isn’t that..." You began but then John hissed and slapped your ass as hard as she could and hissed,"No words, remember?" She then sighed and giggled, falling against you, so you laid down and allowed her head to rest in the cleavage of your breasts.
"You’re such a slut," You giggled then you wrapped your tail around her waist and sighed,"just like me too."
"You don’t even know sis, I can barely even remember our names after that rush." She panted
"Heh, oh June you beautiful idiot you, it’s just little busty me, Lizzy." You replied
"Our parents really were shit at picking names, hell mine is just the same month we were born," June commented
"Yeah, mine is worse though, but we turned out as cute as ever. Say... you are bi right?" You asked
"I-I mean... yeah?" She replied a bit confused
"You had to be to let me taste that delectable pussy of yours last week." You giggled
June blushed and hissed,"Liz!"
"It’s just the two of us, and possibly one of the other girls if they wanna join in. Besides we have time to kill until someone lets up out." You said with a grin.