Rhetorical question!

"Okay, girls..." You said, sitting down in your recliner next to the couch and crossing your bubbly young legs, clearly both anxious and eager about what your daughters were going to ask for, even though you were doing everything in your power to not show the the latter. "Keep in mind, Daddy's going to throw in a change of his own along with whatever it is you want, but if you turn down whatever he does to you, then you lose what you ask for."

"But we'll be the only ones aware of it, right?" Gina asked, practically bouncing in her seat on one end of the couch.

"You and Daddy, yes."

Calling your eighteen-year-old son by that title was getting less embarrassing each time you said it, but part of you was afraid one of the girls would suddenly catch on and call you out on it. Thankfully his magical device's power seemed to be absolute, so there wasn't much to worry about, you eventually realized. The only thing bugging you was that Gina and Tammy would soon have things changed about them that even you yourself wouldn't be aware of.

"That's fine." The tall girl shrugged. "I trust our goofy brother not to do anything too crazy."

"That makes one of us." Tammy sighed, sitting on the opposite end of the couch on the side further away from you. "I'm surprised that little creep hasn't already turned us into brain-dead sluts."

"Because he's a good kid." You said, giving your daughter an annoyed frown. "Trust me, it'll be tame."

"Oh yeah?" Tammy asked, raising an eyebrow. "What'd he do to you in exchange for those tits?"

"I-..." You said, blushing as Gina's head snapped towards you with a curious expression. 'Well, I can only call him Daddy, he knocked about fifteen years off of my age, pierced my nipples and made them as sensitive as my clit, and the only thing I have to wear now is this cleavage-heavy bunny suit.' That's what you wanted to say, but to spare yourself from the shame of your daughters' potential disgust, you instead cleared your throat and attempted to compose yourself as you decided to mention the most tame change done to you. "My hair was brown before yesterday."

"Really?" Gina asked, cocking her head to the side. "I always remember your hair being scarlet, though."

"Exactly." You smiled, noting that Tammy didn't look too convinced.

"Wow... That's so weird, but kinda' cool, too." Gina giggled.

"Are you sure that's all he did?" Tammy insinuated, crossing her arms as a cocky smirk appeared on the pretty blonde's face. "I've never heard you moan like you were doing in the shower for God-knows how long."

"Tammy!" Gina shushed, while your face instantly became as red as a beet. "I don't think it's any of our business what all mom asked Mike for."

"That's r-right." You said, failing to not appear embarrassed by the comment. If you had known your daughters were home during your hour-long bathroom session, you would've both kept your high-pitched squeals to a minimum and confronted them much sooner. Still, you couldn't help but be thankful that Gina was backing you up, which gave you the courage to offer up one of the graphic details about your changes. Of course, half of the details were a lie. "But, if you must know..."

The girls both looked at you and leaned in slightly, heightening your **** to speak.

"I-I, uh..." You cleared your throat again, deciding to spill the beans on a certain subject. "I keep a, uh... a 'friend' in my bottom drawer, and let's just say that it was always too big for me to handle. Well, it's not anymore, and I might've gotten carried away this morning when I was taking a shower..."

Both sets of their eyes went wide at that.

"And how did you phrase that request to Mike?" Tammy asked, still grinning.

"Seriously..." Gina couldn't help but wonder as well, it seemed.

"That's not important." You said, more sternly this time, rolling your eyes with frustration at their persistence. "What is important is that I trust Daddy, and that he's proven to me that he doesn't let his dick think for him, despite how strange he can be sometimes. Plus, he knows that getting permission before he does either of you girls any favors with a reality-altering machine is the responsible decision to make, after all."

They both looked at her for a long time without saying anything. Gina's expression was still shocked, looking as though she'd lost in thought after you mentioned your magically elastic pussy. Tammy still had her arms crossed but was no longer smirking, and instead was leering at you as if trying to figure out whether or not you were lying.

"Let's get on with this, then." Tammy eventually said, then exhaled a defeated sigh.

"Oh!" Gina said, apparently snapping out of a trance at her sisters words. "Right!

You sighed with relief, your body relaxing as the shameful buzzing heat of building lust deep within your moist pussy was now noticeable to you once again.

"Who's first?"

"You can go, Gina." Tammy said. "I'm still thinking."

"Woo!" Gina cheered. "Tell Mike I wanna' be skinnier, but have huge boobs!"

"How big?" You asked, your motherly tone slipping through as you tried not to give away the fact that you were excited to see your college-age daughters become as sexy as yourself. Part of you had already resigned to the fact that some kinky exchanges would be happening between at least two of you three, but you weren't going to readily accept such a scenario unless they were the ones to blatantly instigate it. "Are we talking something like my size, or-"

"Bigger!" Gina giggled, blushing and glancing at her bored looking sister. "If I don't like them, I can just change them back, right?"

"That's right." You said, pretending to act like a mother despite your excitement to see the results of her request. "While I think you shouldn't go any bigger than a D-cup, I can see how that would sound a bit, uh, hypocritical..." You said, partially lying.

"This should be interesting." Tammy said, somehow able to look bored as she leaned against the couch's arm.

"I'm so nervous, but so ready!" Gina giggled, squirming in her seat.

While the nearly six-foot-tall chubby girl started down at her own flat chest, you were typing into the unlocked phone in your hand.

[ Hey Daddy. Gina wants you to make her thin, and give her a pair of tits even bigger than mine. ]

You sent the text, but felt the need to send another one for clarification.

[ Oh, and I swear that the boobs are her idea, not mine. ]

About two seconds later, you received a reply from Mike.

[ Lol. Okay, one sec'. That counts as two changes btw, so she's getting two conditional changes as well. ]

"Daddy said that counts as two changes, so that'll be two-"

Gina just waved her off, and a second later, her eyes went wide as her bubbly legs clenched together and her hands shot up to grab her small breasts.

Her over-sized white T-shirt instantly shifting to conform to the changing shape of her body was the most immediately noticeable thing happening. Gina's breasts began to visibly expand and grow against her palms beneath the fabric of her shirt, ballooning outward at a rapid but steady pace. While these things happened, Gina was shivering hard as her neck and face thinned out a bit, her form-fitting top began to hug her narrowing waistline and flattening tummy, and even though her large ass and wide hips remained rather big and round and bubbly, its circumference shrank by several inches as it's skin became tight and perfectly-smooth underneath the fabric of her skin-tight sweatpants, but was still plush and jiggly.

Meanwhile, Gina's tits outgrew her small hands rather quickly. They swelled to the sizes of grapefruits, then cantaloupes, then melons-balls, then full on overly-ripe watermelons that appeared to be similar to your own in regards to their shape. She was clearly braless, but her tits were almost perfectly-round with the slightest bit of sag, and judging by how far Gina's hands were able to press into their centers and cause her mammaries to bubble and bulge out around them, they were clearly as plush and jiggly as all-natural tits.

When it was finally all said and done, Gina let out the breath she'd been holding in for those five seconds, gasping and moaning and shivering like someone whose senses had just been assaulted by a raw onslaught of pleasure.

You knew that feeling all-too-well, but your daughter may have just experienced it on a much higher magnitude given her changes, judging the blissfully expression on her rounded but nonchubby flushed face.

You quickly removed the giddy smile that'd appeared on your lips during that ordeal and resisted the (almost involuntary) urge to rub your wet pussy over the thin strap of tight red latex that was covering it.

Tammy was still leaning back against the couch, although now her eyes were wide and her mouth was agape. The skinny blonde's empty hand was up and open as if she were still holding her phone, but she appeared to be too shocked by her sister's transformation to realize it'd slipped from her grasp and had fallen to the floor.

Gina's hands slowly pulled away from her breasts as she also stared down at them in both shock and awe, allowing the giant round masses to take their perfectly round shape and jiggle around freely underneath her shirt. She then wordlessly reached up with both hands to feel her slender cheeks and neck, slowly brought them down to her shrunken waistline, and finally her thin hands rubbed her smooth flat tummy. Once they reached her hips and began running across her bubbly plush thighs over her gray sweatpants, her expression finally shifted into one of slight confusion.

"I-I guess Daddy didn't want me to lose my butt." She said, and her eyes went wide as her hands shot up to cover her mouth. "D-D-Daddy? Daddy! Aha, what the fuck! Daddy?!" Gina cried out, giggling like an idiot as her massive tits jiggled and sloshed around like watermelon-sized water balloons with each of her slight motions. "He's such a dork!"

"What's wrong, Gina?" You asked, feeling a twinge of parental worry in your heart. Why was she giggling over her brother's nickname?

"I can't say D-Daddy's name anymore! I can only say Daddy!" She said between her fits of laughter.

"What are you saying?" Tammy asked, now broken from her stunned trance. "You're not making sense."

"Wait, what are you saying?" Gina asked, still grinning with amusement but no longer giggling. "It's not weird that I'm calling our little brother by Daddy?"

"... No?"

That was strange, you thought to yourself with curious intrigue. For as long as you can remember, Gina always referred to Mike as Daddy and nothing else, even when they were kids. Maybe that was one of the two changes you weren't supposed to notice? Honestly, it was bizarre trying to imagine her saying anything else. At least she wasn't stuck calling him something kinky like 'Daddy', which you had already begun to grow fond of, in truth.

"So that's probably one of his conditional changes." You said, unable to not smirk at that. "Can you tell what the other one is?"

Gina turned to you, looked up in thought for a moment, and then down to her giant tits. She giggled, then brought up her hands and began groping them as best she could starting from underneath. Their oceanic flesh jiggled and sloshed like two massive water-balloons that were filled to the brim.

It was a shame your tall ditzy daughter had the attention span of a goldfish, you thought to yourself with a smiley eye-roll. She'd likely already forgotten what you just asked her.

"I can't believe how light they are... It's like I've got a couple of jiggly clouds on my chest." She said, soft moans beginning escaping her lips as her large thick nipples hardened and were very visible through the fabric of her form-fitting top. "And they feel sooo good, mmph... Tammy, you've gotta try this!"

"I'll pass, thanks." The flat-chested blonde said flatly.

While Gina was simply leaning back in her seat on the couch and playing with her titanic titties, you and Tammy locked eyes.

"Do you still want anything, sweetie?" You asked, trying your best not to openly gawk at Gina's arousal-induced squirming and moaning.

"Yeah, sort of..." She said, her frowning face turning red from embarrassment as she glanced away for a moment. "I wouldn't mind bigger boobs too, but no bigger than a D-cup. And, uh..."

"Don't be ashamed sweetie, mommy's not one to judge. I promise."

"I... I want to keep my pussy, but I also want a dick, too... Johnny has this thing for chicks with, uh... Never mind. I'm sure you get the idea, and I've always wondered what it'd be like to have one anyways."

Your eyes sparkled at that strange request, having several kinky ideas manifest in an instant just from hearing those words be spoken.

This should be interesting, you thought.

Tammy's boyfriend might be a freaky horn-dog, but at least he had good tastes. Imagining Tammy brazenly walking over to you and stuffing your face full of rock-solid girl-cock was causing your mouth to water and your needy pussy to tingle with a perverted interest.

If Mike's program could pull this off, which you were confident it would, you may be sharing a new fetish with your daughter's boyfriend soon.

"Oh, o-okay then." You said in a shaky voice before clearing your throat and swallowing, once again hiding your eager smile as you tried to appear innocent. "How, uh... How big do you want it to be?"

"I dunno', big?" Tammy shrugged, then widened her eyes and grinned a bit as an interesting thought crossed her mind. "Actually, I want a dick that's bigger than the one Mike was swinging around between his legs before he took off. One that'll scare the living shit out of Johnny." She chuckled.

"Really?" Gina asked with a giggle, still playing with her huge jiggling breasts. "Daddy's dick is huge! Anything bigger than that would split someone in half, aha."

"Sounds fun." Tammy said with an evil glint in her eyes as her gaze followed her sister's sloshing tits, still occasionally stealing glances from your own luscious cleavage. "Make it happen, mom."

You were already typing.

"Keep in mind, that'll cause two conditional changes."

"Whatever." Tammy rolled her eyes, then looked at her sister with crossed arms. "Did you ever figure out what your second one was, Boobzilla?"

"Hm? Oh! Umm..." Gina said, pausing her self-groping to try and think of something, but focus was quickly lost as her attention shifted back to examining her giant but seemingly weightless tits.

"Never mind." Tammy sighed.

[ So, Tammy wants a D-cup bust and a dick that's bigger than yours. Again, none of this was not my idea, I promise. ]

Mike responded with a text almost instantly.

[ Uh-huh, suuure it wasn't... Just kidding. Give me a sec'. ]

You smirked and giggled softly, way too curious to see what was about to happen.

A second later, Tammy's eyes went wide and her body trembled as her hands immediately shot to grab at both her chest and crotch.

Just like with Gina, you saw Tammy's black tank-top shift slightly to comfortably hug and display the curves of her quickly growing assets. While her new bust was smaller than both yours and her sister's, she was still showing off plenty of cleavage now, and her short frame made them look big even for her. Her second change wasn't as noticeable as the one happening up top, but you soon noticed Tammy's fingers part as the hand holding her crotch was pushed away by a swelling lump of flaccid girl-dick. It quickly became too large for her hand to be able to cover or hide to any extend, bulging out from the front of her dark-blue pajama bottoms as if she were suddenly smuggling a mushy cantaloupe in them. During this tense but brief moment, you and Gina watched on in fascination while Tammy was shivering and letting out low guttural grunts and moans.

Once her transformation was complete, the short blonde sighed deeply. Her hands were still trembling as they pressed up against and groped one of her perfectly-round D-cup breasts and mushy over-sized bulge, looking down at her body with utter disbelief on her slightly drooling and open-mouthed face.

"Oh my gosh." Gina said softly, her huge breasts heaving with each breath she took. She slid closer to Tammy on the couch, her eyes locked on the juicy swelling package she was messaging. "I'm almost afraid to see it."

"I'm not." You found yourself saying, your breathing heavy and your heaving breasts threatening to pop right out of your latex bunny suit. "C'mon honey, whip that thing out for us. Mommy's curious."

Tammy looked up at you in surprise, both of your faces flushed and slightly as she swallowed hard. You could see how hard her heart was pounding in her chest by the slight but frequent jiggle-pulses being sent through her bubbly cleavage.

She reluctantly lifted up slightly and slid her fingers under the waistband of her bottoms. Inch by inch, Tammy's smooth slender thighs and brand new cock became exposed. Its throbbing base was as thick as your forearm as it slowly unraveled from the pair of thin white panties it'd been bunched up inside of. Two hairless balls revealed themselves soon after, resembling a pair of baseballs that were mushed together in her tight silky-smooth scrotum. Finally, once Tammy's pants and underwear were around her knees, her cock finally had enough room to breathe and become fully-erect, thumping out and upward as it escaped the waistband, its perfectly-straight length throbbing and twitching in the cool air of the living room

"Holy shit." All three of you said at the same time, stunned by its obscene fifteen-inch length.

"I think Daddy might've overdid it..." Gina gulped, still messaging one of her giant tits.

"No." Tammy finally smirked and giggled at that as her expression changed to one that was hungry, horny, and eager to do something with her new weapon of mass destruction. "I think Daddy knew exactly what-" Her eyes went wide, now fully understanding why Gina had suddenly begun laughing about calling Mike by her long-time nickname for him. "Goddamn it, Da-Dad-... Daddy! Oh, for fuck's sake!"

Even though you didn't notice anything different about what Tammy was referring to her brother as, believing that both of your daughters had always innocently referred to him by that title for as far back as you can recall, you couldn't help but let out a mindlessly horny giggle at her reaction to saying Daddy.

This whole reality-warping stuff was super fun, you thought to yourself as one of your hands wandered down towards your absolutely soaked pussy.

"You too, huh?" The ever-astute Gina giggled. "Don't worry sis, I've never heard you call him anything else, I think, so I'm pretty sure nobody else will notice."

"... I've never been so turned-on and so pissed off at the same time." She said, holding the base of her thick cock with one hand while rubbing the bridge of her nose with the other. "When I see him again, the first thing I'm gonna' do is jam this thing in his stupid hunky ass." Tammy said with an angry/lusty grunt, biting down on her bottom lip as she clumsily wagged the completely solid mass of fuck-meat back and forth.

"C-can I..." Gina sheepishly asked with a mesmerized look in her eyes, already slowly reaching a hand out towards her sister's cock while still rubbing her own huge breasts. "Can I touch it?"

Tammy paused with wide eyes, her heart racing a mile a minute. Instead of giving the massive-breasted amazon an answer, she simply remained quiet and watched Gina's hand carefully grab the tip of her circumcised cock. They both gasped upon contact, and the thick head pulsed in her gentle grip.

"Wow..." Gina said, slowly moving her hand down around the very thick length of Tammy's cock, giving it a long stroke down to the middle of its beautifully smooth shaft before giving it the tightest squeeze her hand could muster, unable to make her thumb and index finger connect around its girth. "This thing looks like it belongs in a hentai comic... What does it feel like?"

"It feels like you're grabbing my dick, you friggin' weirdo." Tammy grumbled, her hips reflexively thrusting upward into Gina's tight grip ever-so-slightly as a clear bead of precum formed at the tip. "If you're going to hold onto it like that, you could at least stroke it."

Hesitantly, but ultimately, Gina began to do just that, never breaking eye-contact with her sister's angrily twitching pole.

"Mmph!" Tammy moaned in surprise, her heart feeling like it was going to explode while the unfamiliar pleasure building up within her groin and the tip of her cock notably began surface. "W-Wait, Gina! I was just k-ki-... Ooh, fuck... Holy shit Gina, don't stop..." The short blonde shivered and melted back in her seat on the couch, surrendering to her absent-minded sister's fascination with her new dick.

As the pace of her hand increased, so did the amount of cock she was stoking. After a solid minute of this, Gina was actively pumping her hand up and down the entire length of Tammy's dick while the blonde was squirming in her seat and roughly pawing at her new sensitive breasts. It wasn't long after that her cock began to twitch even harder as Tammy's moans increased in both frequency and pitch. The girl's over sized balls tensed up without warning, and geyser of cum shot out from the tip of her cock in a constant flow as Tammy cried out in lust.

Gina giggled and turned to mash her massive plush tits into her short sister's pleasure-riddled face, muffling her moans while the uber-busty beauty's hand never stopped working Tammy's cock.

You were surprised to see how much Gina was enjoying herself, considering how taboo their act was. However, this was enough to set you over the edge. An much-needed and powerful orgasm rocked through your spine and nervous system, having moved the thin material covering your gushing pussy to the slide slightly just as soon as they'd started, which gave you enough room for to begin pumping two fingers in and out of your cunt while you gently pinched and teased your extremely sensitive pierced nipples over the latex fabric of your outfit with your free hand.

Your moans blended in with Tammy's own muffled wails each of your orgasms lasting for about half a minute before they began to subside. Once you were coming down from your sexual high, the seat of your leather recliner was completely wet and sticky from your womanly juices. Once the seemingly endless stream of cum rocketing out of Tammy's jumbo-sized love-canon began to weaken and stop altogether, the short blonde was mindlessly biting her one of sister's huge thick nipples and kneading her massive tits with both hands. Gina herself was rubbing the visibly wet crotch of her sweatpants while the cum-slick hand that'd been working her sister's fat dick rested its palm on top of her still very erect cock-head.

"Geeze, Tammy." Gina giggled, softly moaning and occasionally letting out a sharp squeal as her sister kept on groping her huge tits and biting down on her erect nipple. "I may be a virgin, but I give one heck of a handjob, wouldn't you say?"

_"Mhm..." _Tammy weakly mumbled, her mind clearly lost in a haze of post-nut bliss as their mother continued to go ignored.

So much so that they never realized you were cumming your brains out moments ago as you witnessed the hottest thing you've ever seen before. Sure, it was twisted, depraved, and unholy to masturbate while watching as your daughters slowly sank into the same depths of perversion you had willingly cannon-balled into yourself, but you didn't care about silly concepts like 'right or wrong' anymore, you just wanted all of this to continue and escalate further.

You bent down and picked up your dropped phone from the floor, wondering what kind of selfishly sexy request you wanted to ask Mike to make for yourself.