A story made as my part of the 2nd story trade with AGroupOfFatties
Margaux the elephant, Maxence the hippo, Damien the hippo, and Clarisse the elephant all belong to AGroupOfFatties

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On one fine morning, in a big mansion, lived a family of hippos and elephants: Margaux the elephant, Maxence the hippo, and their two children who are also a hippo and an elephant. Damien is a hippo and his sister Clarisse is an elephant. Like every morning, they woke up from bed, got ready, and went to the dining room to have breakfast. “Oh, honey, do you remember what day it is tomorrow?” said Margaux to her husband. “Yes. It’s our wedding anniversary, right?” Maxence replied her wife. “That’s right, Max.” she replied back. “What will we do to celebrate it this year?” she continued. “Well… I think that we should celebrate our anniversary with everyone this time, dear.” he replied. “A party?! Tomorrow?” Margaux asked in surprise. “How will we be able to prepare all that?” she continued. “Relax, dear.” Maxence answered. “We’ll just hire people to do the job for us.” he continued. “The only job we need to do is be there and celebrate.” he continued more.

As they finished breakfast, the couple thought of the people they need to hire for their party and started calling them. They called people to print and deliver the invitations, and interior designers to decorate the mansion. They also hired some chefs to prepare the big feast for the party, waiters and waitresses to serve the guests food, and a fashion designer to make their anniversary suit and dress. They also didn't forget to hire people to entertain their guests while partying. All was well and according to plan. For the next day, they had hired make-up artists so the family could look their best for the anniversary night.

As the big night arrived, the couple walked to the living room, where the party was held. Evey guest looked at them in awe, as they headed to the stage. "Thank you, my dear guests." said Margaux to the guests. "I hope you will have a good time in this party, in celebration of our anniversary." she continued. "Now, let us feast in celebration." said the couple in unison, before going down from the stage and heading to their own table.

As they got their food served, the couple suddenly needed to go to the bathroom. "Damien, Clarisse, if anyone wants to look for me, tell them to wait. I need to go." said Margaux to her children. "Yeah, same here." replied her husband. As they left for the restrooms, Damien was struck with an idea. "Hey, sis, let's prank mom and dad with this." said Damien, holding a small vial. "It's a super duper spicy hot sauce I got online and I've been waiting for ages to try this one." he continued. "Also, one drop is all I need because this sauce is spicier than the spiciest peppers in the world." he added. Clarisse declined, not wanting to embarrass her parents on their big day and get in trouble but her brother still wanted to do the prank anyway. "Fine, just do what you want, but don't bring me because I'm not looking to get into trouble today." said Clarisse to his brother. Damien then added a single drop of the sauce on his parents' bowls of soup and went back to his seat.

Margaux and Maxence came back from the restroom and started eating their meals. "This is it, my best prank yet." said Damien in his mind. Unfortunately for him, Margaux and Maxence decided to have their soups last, before dessert, so he had to wait for them. As the couple finished their delicious dinner, it was time for them to drink their soup. They took their spoons, and started drinking, as Damien watched how they would react. "Mmm… these chefs really know how to make a spicy soup." said Maxence haplily. His reaction made Damien disappointed, but then he heard a scream for help. "What's wrong, honey?" Maxence asked his wife. "The soup is too spicy." she replied. Maxence quickly grabbed a glass of water and gave it to Margaux, hoping to soothe the spicy feeling, but Margaux still had the hot feeling in her mouth. She then grabbed the nearest pitcher of water she could find and drank from it, but she still felt the spicy flavor of the soup. Maxence tried to think of a good idea and decided to bring his wife to the kitchen.

In a hurry, Maxence and Margaux went to the kitchen. Margaux was still panting, trying to cool her mouth down. Arriving at the kitchen, she spotted the sink and plugged her trunk to the sink’s spigot, then immediately turned on the tap. Rapidly, water filled her trunk, and into her belly. Her trunk bulged like a hose as the water entered from the faucet. Her stomach started feeling fuller and fuller with every liter of water she drank, but not feeling any cooler and cooler. Her belly then started expanding outward, becoming bigger and heavier. Her belly was now like a bed for one but, demanding more and more water, she kept expanding.

The expansion started to go to other parts of her body, her torso, arms and legs. Her entire body started to round out like a water balloon, becoming rounder and rounder until the spicy feeling was gone. Her legs and arms started to swell up as well, as if she were an elephant pool toy, becoming bigger along with the rest of her body. Her dress started to feel tighter and tighter and could rip at any moment, but she couldn’t care less as all she could think of was cooling herself off. Her dress seemed to shrink and shrink, in contrast to her continuously-water-filled body. Reaching the size of a bed for two, her legs couldn’t support her body’s weight and she finally sat down.

Finally, Margaux’s mouth started feeling less and less spicy. She was ready to turn off the tap but it became out of reach for her inflating body. Margaux calmed down, unplugged her trunk, and called for Maxence’s help. Maxence then came and turned the tap off. Margaux now looked like a 4-meter-wide water balloon, with her head and her body touching the kitchen’s floor, and the ceiling at the same time. “Feeling better?” Maxence asked his wife. “Yes.” Margaux confirmed. “Well, then, let’s get out of here and wrap the party up.” Maxence replied.

Maxence rolled his wife out of the kitchen, and to the living room’s stage. Sometimes, Margaux’s body got stuck through the doorway, but Maxence was still able to push her through. As they headed for the stage, Margaux told what happened to the guests. “I was lucky to have a strong and caring husband like Maxence.” she said. “Let’s end the party with a kiss.” she added.

Margaux then kissed her husband, but the expression in his eyes changed from being happy to being shocked as she blew copious amounts of water into his body. Just like with Margaux, Maxence’s belly started expanding outward, followed by the rest of his body, and his limbs, which started to inflate and round out. His suit became tighter and tighter as she kept blowing water rapidly into his body. As Margaux slowly ran out of breath, the kissing ended, and the size of Maxence’s body has equaled the size of Margaux’s. His suit had become so tight, the gaps between the buttons exposed his belly, his belt had also unbuckled a bit. Maxence could even hear sloshing coming from his inflated body. Although the couple didn’t expect to end up looking very inflated at the party, they both still had a great night. With that, the party ended and everybody headed home.