[Visual reference for Ariadne, though imagine that she has a bit more muscle in her arms and is taller]
![[Visual reference for Ariadne, though imagine that she has a bit more muscle in her arms and is taller]](https://i.imgur.com/PbFaO8k.jpg){kind=link}
"This is amazing!" Ariadne exclaimed and you could see that her eyes lit up, not unlike when she got a Christmas or Birthday present. Normally something you'd tease her about, and personally found kind of adorable, but in these circumstances it made you nervous. Their whole conversation, which you couldn't really avoid hearing, did nothing to help putting you at ease.
"Huh... What were you doing in your sister's thong though?" Jordana asked with a raised eyebrow. You were a little annoyed by her earlier assumptions but to be fair, you could see why she'd be led to believe that, so you didn't get mad at her, but you were about ready to explain.
"You see-" You began saying, when Ariadne nonchalantly picked you from her thong and brought you to her face for a massive kiss, then she gently pet your head with her fingertip.
"C'mon 'Dana, you're gonna embarrass my poor lil' bro" She said as she dangled your tiny confused self before her nose, cooing at you.
"But it seems like he was really perving on your underwear!" Jordana said. Not that she was actually mad, but under the pretense of punishing you she intended to get 'quality time' with you.
"Aren't you bothered at all?" She raised an eyebrow, but despite her body language, her voice's tone revealed that she wasn't even mad herself, and was even trying a bit hard to look like she was.
"To be honest, nah, it doesn't bother me at all" Ariadne replied and kissed you again, for longer this time, giggling quietly from feeling how her plush lips easily engulfed your entire form. But even she could tell that Jordana likely wanted an explanation.
"For starters, I've already told you, I know my lil' bro well enough. I'm completely sure that perving on my undies wasn't even the last thing in his mind, it wasn't in the list of possible reasons he might have done this at all"
"Well, he sure is incredibly lucky to have such a loving big sis" Jordana shrugged, she could tell further attacking that argumental line wasn't going to lead anywhere productive to her.
"I know!" Ariadne said "I dunno for sure why exactly he did this, but I do have some ideas" She smiled sweetly at you but you didn't like the look in her eyes, and her humongous kisses had almost literally left you breathless, so you couldn't even speak up until you recovered enough air in your lungs. But before then, she nonchalantly lowered you down to her waist's level and brought you around it to face her huge jean-clad booty. Those jeans looked like they were bursting at the seams, unable to contain the sheer tonnage that made up Ariadne's outrageously big ass.
"I think lil' Blaisey here just wanted to give big sis a nice extra gift along with her new thong" She said, making you nearly faint. Yet, that kind of reasoning should've been expected from her.
"It's even a bit much of a coincidence, I guess Zoey talked him into it" She said while briefly looking at Jordana, but quickly focused her attention back on you.
"What do you say lil' bro? Wanna take a ride in big sis' big bootay?" She asked while playfully shaking her hips. One thing you never understood was how with all the exercise she did she still had a giant ass that was not only huge but also pretty fat and jiggly, probably falling into a middle point between Lillian's and Jen's if you had to make a comparison that made sense. Her mountainous cheeks shook and wobbled like they were made of some kind of gelatin, despite the rough, tight fabric constricting them.
"But why would he do that...?" Jordana raised an eyebrow again, the question was sincere this time.
"To make me happy" Ariadne shrugged "I mean, it's just like how he lets mom and I sit on his lap or even on his face when we can get away with it"
"Hmm..." Jordana knew that indeed, when your mom and Ariadne were up to their shenanigans, you didn't put up much resistance, in fact, in your mother's case, you basically didn't resist, and with Ariadne it was minimum at best. As dubious as it seemed, that point held some truth to itself.
"There's another possibility..." Ariadne said, and as her focus slipped a little from you to Jordana, her hand, now somewhat idle, found nothing better to do than to press you right into one of her bulbous cheeks, subconsciously enjoying the feeling. This muffled and smothered you, further slowing your recovery and preventing you from speaking.
"You know... Zoey may have told Blaise about her shrinking stuff..." She began explaining "And maybe he thought of using that to get closer to one of the girls"
"Oh?" Jordana perked up, she hadn't considered that possibility yet "Wait a minute, if that was the case, why did he go for your undies then?"
"Simple" Ariadne shrugged and gave her a smug smile "Trying out something like that must be scary... I'd say dangerous too but knowing Zoey I don't believe she would've let him shrink himself if there was some actual danger to it, she kinda likes him as a little brother too you know?"
"I'm not so sure about the 'little brother' part... We both know she kinda has a thing for younger boys" Jordana crossed her arms.
"The pot calling the kettle black" Ariadne chuckled and stuck her tongue out at her friend, who frowned, pouted and blushed all at the same time.
"Anyway!" She continued "Since this is a new and unknown experience, what do you think he would do?"
"Uh... Test out the shrinking thing?" Jordana didn't sound too convinced but she had no other possible answers for that.
"Bingo! And what better way to test the shrinking stuff than to go with a safe target? I mean, I know the girls are his friends but I guess even he has some sense to tell that they might get a bit carried away, and with this being his first time doing this, it makes the most sense to try it out with someone he'd feel safe with..." Ariadne finished her explanation with a wide but genuine smile.
"Well damn, when you put it that way it does sound kinda reasonable" Jordana was honestly surprised, she sometimes questioned Ariadne's way of thinking but right now she realized that she had a logic to it even if it could look a bit convoluted at times.
"Duh! Besides, this makes me really happy too! I've told him for ages that if he ever has some kind of questions about us girls and our bodies I'd be glad to help, and for once he's taken me up on my word!" Ariadne added. Finally, she remembered about you and quickly found out she had been pressing you into her cheek for a while.
"Yeah, just like that..." She said in a quieter, softer tone, rubbing you in little circles "There's nothing to fear with your trusty big sis, huh? I don't mind getting a little up close and personal" She giggled.
"So... what are we gonna do? Or what are you gonna do?" Jordana asked.
"That's Blaise's choice" She said "Speaking of which..." She brought you back before her face and with one of her hands she grabbed her thong. Without saying anything, she put you back onto its back string and put it on the bed. She then winked at you and took her jeans off, with quite a bit of effort given how wide her hips were and how big her cheeks were as well. Once she tossed them aside, she picked the thong up and held it right before her gargantuan ass, which was easily swallowing the dark pink panties she wore, and like most girls and women you knew, turned them into a sort of makeshift thong.
"Soo... do you really wanna go in big sis' big booty riding in my new thong?" She asked softly, bringing you closer and closer to the deep, dark chasm that was her crack, making you gulp while feeling like you were gonna have a heart attack.
"Or... you know, if you don't really care about the thong you can just go right here into the back of these panties" She then said, nonchalantly picking out her wedgie, but as soon as she did, the pink fabric was rapidly sucked back into that enormous crack.
"I mean, these panties are fairly clean so I don't feel like changing them soon, but you're the boss this time lil' bro"
"Hey, in the end we just assumed what Blaise was doing and we never really asked his motives" Jordana interjected.
"I mean... I could help him too... or if he was really perving out like I first thought, I could definitely help to set him straight" She added, giving you a rather suggestive look as she spoke.
"Oh! You're right!" Ariadne brought the thong back to her face's level, giggling at how you held onto the back string, she found it overly cute.
"So, Blaise... what were you even trying to do, huh?" She teasingly asked, but she sounded like she already knew the answer.
You finally had your chance to speak, but you realized that you were pretty much thoroughly screwed. With how they laid things out, you basically were condemned and could only pick your sentence... either face Ariadne's terrifyingly massive ass at your current scale, or worse, face Jordana's even bigger, gassier, and by what you heard before, far smellier one. But your sister loved you very much and usually supported you, maybe you can carefully talk your way out of this one?
RandomAnon
237 views
·
May 12, 2023
Sign in to comment