For all the trouble Coco had getting here, the Temple of Mezro really wasn't that hard to explore once she found this particular needle in the haystack that was the jungle that surrounded it. The layout was fairly straightforward, and calling that one hidden door 'hidden' was probably giving it too much credit, unless Coco really was as amazing a treasure hunter as she acted. Inside the hidden room, Coco peered at her prize over her sunglasses. In front of her was what the history books called 'the Venus of Chult', a mysterious artifact that allegedly had magical properties that could cause growth. If nothing else, the people who put it here certainly seemed to think that, judging by the faded artwork of obese men and women on the walls of this chamber. Coco had doubts that this artifact was trapped, but she was still being very cautious. At least some of the sweat dampening her tan tank top was from nervousness, but more of it was from the heat, making her want to grab this thing and get back to the tent outside. She wiped her hands off on her dark brown pants, before moving her hands slowly towards the artifact. Then, in one quick movement, she swiped it. She paused a moment. No pit opened up, no spikes or darts shot out from the wall, no boulder coming to crush her, everything seemed fine.
Coco took a moment to examine the artifact in more detail. It certainly seemed to match the descriptions given. It was carved out of pure obsidian into the shape of a very large nude woman. No one part stood out in particular, every part of this carved woman was roughly equally bulky, the figure's bulkiness likely contributing to the heft of it, as it was not a small figure even ignoring the subject's weight. Coco thought about what it would have been to meet the carved subject, and would have thought about it more if she hadn't heard a very unnatural sound. Coco looked around for the source, and didn't realise what the cause was until she looked down. The immediate thing she noticed was her belly, now fully exposed, rather than just her midriff, as it had grown fatter and rounder seemingly while she was standing here, and it was growing before her eyes. That was when the feeling of tightness from all of her clothes hit her suddenly. She had to get out of here quickly. Turning, she moved out of the secret chamber as quickly as her larger, slower body would carry her. It was no crumbling ruins or anything like that, but the risk of being too large to leave the temple really got Coco moving. She made it up one floor when the clasp of her bra gave out, and only one more when her clothes began to tear. Her run was starting to turn into a very quick waddle, and the sudden size increase made her movements awkward, but before disaster could strike, Coco burst through the temple's entrance and made her way down the dozens of steps towards the tent.
Inside the tent, Velvet paced nervously. She never liked Coco going off on her own, but Coco was right, her sore shoulder did need the rest. Velvet felt her heart begin to race as her bunny ears' incredible hearing picked up the sound of footsteps approaching the tent from the temple. They didn't sound quite like Coco's, but Velvet was sure it was her girlfriend returning. She raced to the tent flap and almost didn't believe what she saw. Coco was positively round at this point, most of her massive body tearing through her clothes, exposing her pale flesh. Her gargantuan belly made up most of her size, but her breasts and behind were still far larger than most that Velvet had ever seen. Velvet almost completely missed the idol in Coco's hand, her eyes were so transfixed on her girlfriend being so massive. Velvet was trembling at the awe-inspiring sight as Coco came to a stop in front of her.
"I got it!" Coco cheered. "Turns out this thing is magic, or something."
"L-large. You're so large," Velvet stuttered. Coco let out a smug chuckle.
"Like what you see, Velv?" Coco teased, putting her arms above her head and shaking her pendulous belly. The fat mass wobbled like jelly, almost hypnotising Velvet. Then, suddenly, the sound of tearing distracted her as Coco's pants finally gave out on her, falling to the ground in a tattered heap with her panties joining immediately after. Coco then put her arms behind her and stretched, making her bountiful bosom tear through what remained of her tank top. Her massive mammaries spilled out of the ruins of Coco's top, before Coco tore what little kept the garment on, tossing it on top of her torn pants. Coco sashayed right up to Velvet, her belly against Velvet's toned body. Velvet had gone bright red and her heart was pounding with arousal and excitement. "Velv, babe, hold this for me, would you?" Coco said, more ordering than asking as she put the idol into Velvet's hands, before stepping back to admire the view.
Velvet's jean shorts only lasted a minute as her ballooning rear destroyed them. Her black tank top only lasted another minute longer because of all the weight going to her rear. Soon enough, she was standing, completely nude and horny out of her mind in front of an equally nude and equally horny Coco. It was a good thing the couple were out in the jungle in the middle of nowhere, as the rest of that day was very, very noisy.