Bikini/Thong shopping with Lillian
Lillian easily dragged you by the arm and you two went outside, she had already grabbed her mom's car keys before she came to visit you.
"Do I really have to come?" You asked, still not quite on board with her plan, though you were already sitting at the copilot's seat
"Yeah. I already told you why" Lillian replied and instead of getting into the driver's seat, she went and sat on your lap again
"It'll be worth it, I promise" She whispered suggestively into your ear and got off you but not before a generous dose of grinding on you, and a teasing smack to her big butt, making it jiggle even more.

She drove to the mall, and because of vacation time traffic, it took longer than it should, but not too much, and in about half an hour you arrived. She walked with you next to her and one of your arms wrapped around her waist, making it look like you were a couple, though the people that actually knew you knew it was just one more of Lillian's usual antics. Unknown to you, this was also one of her ways to ward off competition or to keep people like Celeste and Emily away.

It didn't take too long to reach the store, it had both lingerie, various other types of underwear, and of course, what Lillian came for, bikinis. She pretty much ignored most other types of swimwear and headed straight for the thong section. Before you could look around to find a place to sit, she wrapped her arm around your neck.

"This is where you come in... I want you to pick a bikini thong for me" She said softly while leaning her head close to your ear, but not whispering. You instantly blushed and gulped hard. Smiling, she grabbed a nearby thong.
"Any that you choose will go straight into this big ass I know you love" She said and held it in front of said butt, showing how puny it looked compared to her. She laughed and nonchalantly put it back.
"I think I have a pretty good idea on some that I'll pick, but I definitely want your input, and I'll try the one you pick for me first" She added and headed for the changing room, grabbing a few thongs along the way, making sure to sway her hips as much as she could get away with and to make her enormous cheeks jiggle for all they were worth.

You didn't know a whole lot about underwear, and knowing Lillian, that was probably the whole point, she said she wanted a man's opinion, and to be more accurate, she wanted your opinion. Even though this kind of request was far from being the first she asked of you, it never failed to make you flustered and nervous. Still, even without that, it was a pretty difficult task. You knew Lillian had to be wearing heavily undersized underwear and bikinis because she seldom set foot in the plus size section despite her height, weight and the size of her curves. But unlike her you had no idea what would be those clothes' limits, and how far they could be pushed, and you worried a lot about giving her clothes that would snap trying to contain her humongous' assets' sheer mass and getting in trouble.

You figured the plus size section probably had fewer choices, and simpler, plain designs that might be too bland for her, but still, you decided that'd be the safest bet. Besides, she'd take it as a compliment that you thought her butt too big for whatever, and it was no secret she wanted it to get even bigger, which is why she ate the way she did. Even Sheila joked that with that appetite and diet, Lillian would probably surpass her by the time she was her age. And given how massive she was, that made you shudder. You weren't sure if you could ever handle Lillian at such a size.

Your first assumptions seemed to be right, though there were some bikinis that were legit just bigger versions of the ones in the ordinary sizes section. Ignoring the awkwardness of being a guy alone looking through bikinis in a store full of women (though you'd guess there'd be some disgruntled husbands/boyfriends around, although you saw none so far) , you find that even these don't seem to be big or durable enough to handle Lillian's booty. Funnily enough, you had even dropped looks out of the equation, because you were just focusing on giving her something that wouldn't snap, which has happened before, although she laughed off every single such incident.

You were baffled that none of the thongs you could find seemed capable of withstanding Lillian's butt, and that made you wonder how other women you knew got their underwear. Jen's butt was pretty big, but it's likely she'd either get the upper "normal sizes" or she was covered within the plus size spectrum. How the likes of Sheila, Ms. McAllen or Arianna got their underwear or bikinis was anybody's guess. Sighing in frustration, you turn to a section that has stretchy ones, guessing that these should at least be strong enough. Although, many of these still look rather flimsy with you until you find a single skimpy red thong that looked pretty small, even for non plus-size derrieres, but it was advertised as extremely stretchy, super durable and capable of fitting any size. It looked like it was a new product. Still feeling like you're making a tough gamble, you decide to choose this one and bring it to her, wondering what her reaction will be.

You walk to the changing room and since there's only one pair of feet to be seen, you guess that's Lillian's cubicle.
"Did you find anything nice and sexy?" Lillian asked with a laugh
"Uh, I'm only betting on the 'nice' part..." You replied scratching your head
"You underestimate my power! Even if it isn't, I'll make it look sexy" She giggled. You couldn't help but quietly nod at that claim.
"W-Well, how about you get out to grab these?" You asked and she enjoyed a hearty laugh for a couple of seconds
"Nice try. But I'm not wearing anything below my waist right now..." She casually said and you felt your heart skip a few beats
"Just slide it under the door, the gap's pretty big" She added and made you gulp hard.
"I'd say no peeking, but it's not even necessary, I'll let you have a very thorough look once I step out..." She teased.

You took a step towards Lillian's cubicle and the entire world shifted as far as you were concerned. You felt incredibly dizzy and lost your balance, tumbling forward. You felt the entire room shift, but your senses were all in utter chaos and disarray, and adding to that, you felt your body quickly heat up to an incredible level, and a weird indescribable feeling as your body contracted into itself, a process that escaped your comprehension, but it felt tremendously painful, as if your entire being was getting squeezed and molded into a much smaller frame.

Your world went dark as your diminutive 1/10 inch tall body disappeared inside the stretchy red thong you were carrying moments ago. With your fall's momentum, that thong easily slid across the tiled floor and into Lillian's cubicle. You finally hit the floor with a thud that resonated across your entire body, and even though you didn't feel anything break, you got heavily stunned by that impact. It took you several seconds just to be able to regain your bearings and look around. You immediately freaked out when you found yourself laying on a giant piece of cloth, its color and material instantly giving away what it was.

Before you could even try to stand up, the ground shakes once and an enormous shadow covers you. Lillian stood in front of you, and as per her claim, she wasn't wearing anything below her waist, but that wasn't the main issue here. She was utterly massive! Like a walking mountain, her toes alone were building sized to you, and you couldn't even begin to imagine how big and heavy her legs were, specially her thighs. She looked down at you and smiled.

"Wow! I underestimated your taste" She said and excitedly picked the thong up
"Where did you find this?" She asked
"W-Wait, Lillian!" You shouted and waved, although the store's music easily drowned out any noise you made
"It looks perfect... but, I think it's too small... do you really think my booty's that small?" She asked in a teasing manner
"Lillian!" You shouted again to no avail
"Hmm? It feels stretchy... Oh, I get it, it's one of those new one-size-fits-all ones, huh? I think the people that made this never saw an ass as big and juicy as mine though" She boastfully laughed "Anyway, you picked these out for me, so I'll try them on... I bet you're gonna love how it looks on me" She giggled again as she lowered it to her waist level and tried to compare it with herself. Just one of her thighs seemed too thick for it by itself, but then again, that thing was advertised as super-stretchy.

She brought them around her waist and you were presented with the view that you dreaded the most, her gigantic butt. Her cheeks were planetoids in their own right, as far as you were concerned, so your previous classification of her as a living mountain was grossly inaccurate, and that only made you gulp harder. She seemed to be gauging how it'd fit her massive ass, and you hoped she'd ditch it, but after what she said, that hope flew right out the window. She then carefully set them on the floor and stepped into the leg holes to slide them up her incredibly thick thighs.

[Paths]
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By what statistically has to be nothing short of a miracle, Lillian looked down at her thong and gasped, spotting something off about it, and with a little more focus, she noticed your tiny struggles. She smiles at you in a way that made you shudder...

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She happily starts to pull the thong up, and it's already struggling to fit her titanic thighs. Still, being as stubborn and persistent as she's always been, she stretches them more and slowly pulls them up, unknowingly carrying you as a stowaway. Soon, she managed to get it past her thighs and reached the thong's ultimate challenge, her monstrous booty. You were about to get a whole lot closer to Lillian's most prized assets...

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May 12, 2023
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