Gina's hot (and hung) now!

While it seemed like Mike had been typing for a full minute or three, the changes that followed his words were almost instantaneous.

Gina let out a shriek of surprise as the mass of her tall and chubby body quickly transformed and reshaped itself into one that most alternative porn stars would kill to have, causing her to push back and land on her new rump. Many of Gina's cells were altered and moved around all throughout her body. For a split-second, her flesh blobbed around like that of plasma in a lava lamp, reshaping Gina into a walking wet dream in the span of a single second.

Most of her long hair seemed to vanish without a trace, leaving her with a short and jet-black faux-hawk that had its spiked tips dyed a bright neon-green color.

All of the unsightly and poorly placed fat that'd built up in her body had left any areas that it wasn't needed. Her face and neck were now thin and striking. Her arms, torso, and calves were now slender, limber, and athletic, even. Her waist was thinner than it had ever been in her entire life, which contoured at an almost sharp angle into a set wide of hips and the biggest, roundest, most gravity-defying ass that any of them had ever laid their eyes on in person, which was acting as a bubbly seat cushion for the tall and quite startled young woman. Gina wasn't able to see it all that well, mainly because her glittery emerald eyes were locked onto the wide valley of cleavage sloshing around in front of her. Each of her breasts were as large as fully-ripe watermelons and just as shapely, and gentle waves of jiggling flesh pulsated with each of the shivering girl's slight movements like drops of water falling on a completely still body of water.

Though she couldn't see them, Gina could feel a cold tingling and noticeable gripping sensation at the tips of her large nipples.

Then, Gina quickly noticed that there was a similar sensation in her nose, tongue, ears, belly button, and weirdly enough, the head of her fully-erect cock.

Not to mention, her current attire was now very different. She was wearing nothing but a neon-green bikini top that was slightly too small for her gigantic bust, showing them off along with her flat stomach and the black piercing in her belly button. Her lower half was covered by the shortest pair of frayed black short-shorts, leaving nothing about her shelf-like lower-half to the imagination.

She sat there silently and with wide eyes, slowly turning her head to get a good look at the jaw-dropping curves of her new body. Gina's slender arms were at her sides while her hands gently rested atop her huge and silky-soft breasts. Her tongue danced around in her mouth, examining the thin rod of black steel now pierced through it and discovering that her jet-black lips had become slightly thicker and more full. Gina's massive, almost-naked butt and plump thighs bubbled against the carpet she sat on, with her knees bent and athletic calves splayed out beside them while her silky-smooth foot-long cock was happily nestled and throbbing with excitement between their plush and tantalizingly smooth flesh.

Eventually she looked up into the eyes of her siblings, who were both staring down at Gina from the couch in front of her with expressions of utter astonishment.

The room was silent for a time before Tammy finally spoke up, her voice nervous and shaken.

“So, uh..." She cleared her throat. "Okay."

Gina turned her gaze back down to the massive orbs that almost looked bolted onto her tall and slender figure.

Wordlessly, her hands slowly and gently moved from the top of her breasts down towards her rock-hard nipples, then further down underneath their immense weight.

She pushed up, her hands engulfed in the flesh of her giant tits as they were hefted up and then dropped, causing them to jiggle around like mad in her strained bikini top.

Gina's heart was racing at the sight, and her cock felt ready to explode as it hung from the top of her unbuttoned short shorts, not that it was visible as it throbbed wildly between her huge thighs.

With glee, Gina looked up into her slack-jawed brother's eyes and grinned wider than ever before.

"Holy. Fucking. Shit." Gina said, before doing her best to stand up from the floor. The weight of her new curves wasn't as cumbersome as she expected, but the way her massive tits jiggled around without regard for their owners safety was clearly throwing the alternative bimbo's balance off.

However, once she was standing up straight, both of her siblings got to see their new sister in all of her perverted glory.

"A-As you can see, I took a few liberties and-" Mike began.

"A few?!" Both girls said, cutting him off?

"Like, I expected some boobs, but I feel like a different person!" Gina giggled with glee, bouncing on her heels and sending her curves into a jiggle-frenzy while her fat cock drooled and bobbed up and down like a reversed tail as it hung out from the front of her shorts. She turned to face a long mirror hanging on one of the walls to the side, and she rushed over to take a proper look at herself. "Jesus, Mike! How much of this stuff was I not supposed to notice?! I mean, my hair, the piercings, and my ass! Holy shit, look at my ass, aha!"

Gina turned her back to the mirror and looked over her shoulder as she gave her huge butt a few shakes, causing it to rhythmically and audibly clap as her two bulbous cheeks slapped together.

"There are two things you won't be able to notice, but yeah, I sort of, uh..."

"Went overboard?" Tammy asked, her voice low and emotionless as she stared at her sister.

"... Maybe a little."

"I love it!" Gina said, biting down on her bottom lip and giving her big ass the hardest slap that one hand could manage as the other was clumsily doing its best to grope and squeeze one of her huge tits, eliciting a sexy moan from her very plump and permanently black lips. "God, I'm just frustrated that I don't already have an OnlySlutz account set up..."

Mike sighed a breath of relief at that, which caused Tammy to turn to her brother with crossed arms.

"So, what did you do to her that she isn't going to notice?" She asked, eyebrows raised.

"You can't tell?"

Tammy scrunched up her face in confusion and turned back to Gina, who was now actively pumping away at her fat cock with both hands as she admired herself in the mirror.

"You changed a lot about her, Mike. So, no. I can't."

"Well, if either of you can figure it out, I'll grant you a "no-strings attached" request." He chuckled, casually stroking his own cock as a smile broke out across his handsome face.

"Huh... That's weird." They heard Gina say, and turned to look at her with one hand on her cock while the other was snaked down between the creamy valley of her bubbly, shelf-like ass and digging around for something. "My plug is gone."

"Weird?" Mike asked, sounding genuinely unsure of what she was talking about, then his face lit up as if a bright light-bulb should be showing over his head. "Oh, yeah, that. It probably, uh, vanished with the wardrobe change."

"I thought something felt off." Gina said, then her eyes rolled back a bit and her mouth opened with a sigh as she slid two fingers into her tight, self-lubricating asshole. As if by reflex, she began pushing and pulling them in and out, her big dick twitching with delight in front of her. "Ahh, that's much better. Mmm..."

"Well, if you need something to plug that fat ass of yours, I've got something that might help with that." Mike said, holding the base of his steely cock and wagging it from side to side.

Gina paused for a moment with a confused look on her face, but then almost skipped over to her brother as she realized what he meant.

"I mean, if you don't mind." She said, blushing like crazy as her bombshell curves bounced and jiggled with each eager step she took. Now standing in front of him, she pulled her hand out from the back of her shorts and placed it on her shapely hip, then cocked it to the side as her cock was only inches away from his face. "How do you want me?"

Mike swallowed hard and his own face went red, suddenly losing his brief moment of cool.

"Um... H-How about on all fours?" The sexy dork suggested.

Wordlessly, Gina gave him a toothy grin, spun around, and slid her thumbs underneath the lining of her tight shorts and began to effortlessly slide down to her ankles. As she did this, slowly and sensually, she sunk down to her knees, got down on all fours, and then arched her back and presented her big gelatinous rump to him, slowly shaking it from side to side while her heavy and very full balls poked out at the top of her thighs.

"Hurry up, little bro." She said, her voice dripping with lusty intent. "This'll be the first real dick I've ever had in my ass."

Mike didn't need to be told twice.

Sliding his own shorts down to his ankles, the young man stood up with his cock in hand and carefully aimed its head towards the center of her crack with his knees slightly bent to align himself.

He slid it between her cheeks, taking a moment to actually find her hole in that valley of toe-curling smoothness, but once he did, he gave a light push, and his head seemed to penetrate with ease. Despite the lack of resistance, it was extremely tight, and Gina purred and shivered with ecstasy at the sensations of Mike stretching her elastic asshole.

It seemed to pull Mike inside of her, and they both sighed and moaned and grunted as inch after inch of his own fat cock entered his sister. About a third of the way in, Mike finally encountered a bit of resistance, but pushed through. As his twitching member passed Gina's prostate, she squealed and shivered hard, her fingers digging into the carpet as her arms shook from the strength leaving them. She squeezed him tighter as she came, feeling a strange mix of embarrassment and satisfaction while a pint of hot white seed gushed between her thighs and leaked down onto the carpet below.

Once Mike eventually bottomed out, he stood there crouched for a moment and savored the way her massive cheeks were grinding up against his midsection and the way her hole was snugly hugging his thick prick.

"Oh my God, Mike... Y-You're so fucking big! I-I've never h-had anything th-this big in my ass before."

Without a word, Gina suddenly felt Mike's cock begin to slide out from her hole, sending her senses into a frenzy.

Her arms gave out and she fell to her elbows, causing her ass to stick up even more.

After his cock was about halfway out, Mike pushed it back in, and Gina came again.

He developed a pace after that.

In and out, in and out, in and out.

It wasn't long before the side of Gina's face was pressed against the carpet, her tongue hanging out of her mouth and drooling as mindless moans of utter bliss poured from between her luscious lips. Each time Mike thrust into her, another load of spunk poured from Gina's cock, producing a seemingly endless supply of cum that soon began to drench and pool up around her knees in the carpet.

And as Mike became lost in doggy-style ass-fucking his tall and uber-curvy sister, Tammy was leaned back in the corner of the couch in both astonishment and disbelief, clutching at her flat chest over her top with one hand while the other was down the front of her bottoms and aggressively diddling her throbbing clit.

She watched on at the surreal sight, completely blown away by not just what was happening, but by just how much she was turned on by it all.

It was like a weird hentai had come to life right in front of her, and while she desperately hated to admit it...

She couldn't wait for her turn.