It was another beautiful day in the Mushroom Kingdom, it was however not like the other days because it was March 10th, the day this Mario Universe came into existence. Mario would be arriving at the castle after the notification arrived by the Mail, hopping out of a Pipe would be Mario himself and upon his arrival he could immediately see a Lakitu sitting on a cloud and holding a camera in front of him. "Happy March 10th Mario! Head to the castle immediately, everyone is waiting" Lakitu would say to the Mushroom Kingdom's hero.
"Thank you, Lakitu! I'll go right now! I can't wait to celebrate MAR10 day with everyone!" Mario said happily, waving to Lakitu as he headed towards Peach's castle.
Lakitu would follow behind Mario with the camera as he floated on the cloud. Peach's castle had a huge banner out front which was telling the date that was being celebrated, that is March 10th or MAR10 day. There were also toads out front cleaning up the bridge with small brooms and pushing off leaves and dust. "Hello Mario! Your princess is actually in the castle" Blue toad would say with a wave.
"Thanks for letting me know! I was planning on going inside anyway. MAR10 day is such a fun time, so I can't wait to see what surprises Peach has in store for me!" Mario smiled brightly as he walked towards the grand doors of the castle.
Mario would open them and see the whole castle inside was decorated. not just his friends from this universe were there but there were also his friends from Smash bros, Samus was there, Link was there, Captain falcon, Kirby(Who was decorating the cake using the cook ability), Ness and Lucas, Pit, Sonic, Pac-man, Mega Man, and a bunch more who were all here to celebrate the Occasion. "Hey there's the Man of the Hour!" Samus would say as she gave him a playful elbow jab.
"Hey, Samus! I'm-a here, and so ready to celebrate!" Mario excitedly took a look around at all of the decorations, seeing just how much effort had gone into preparing for MAR10 day. He saw Samus, Link, and the others who had also shown up to celebrate the occasion. This only made him even more excited for what was to come. As he was taking everything in, however, he suddenly heard a familiar voice calling out to him…
"Mario! You made it!" It was Luigi, his younger brother who quickly ran over and embraced his brother. Luigi was taller than Mario but that didn't stop him from hugging him.
"Oh, of course I made it, Luigi! It's-a MAR10 day after all! And I wouldn't miss it for anything in the world!" Mario replied happily, his eyes glowing brightly as he hugged his younger brother tightly with a smile. Luigi was definitely much taller than him, but he didn't mind at all. It only meant he had to look up a bit more whenever they hugged.
"Oh! I just remembered, Princess Peach is having Kirby make the biggest cake I've ever seen! The big cake is for you and the other one is for everyone else. She had it specifically made by the best chef in the worlds" Luigi would tell his brother while holding 3 balloons.
"Oh wow, that sounds amazing! I can't wait to see-a what it looks like! And I can't wait to sample the delicious cake, too!" Mario replied excitedly, his eyes sparkling with joy at the thought of such a wonderful treat. He couldn't believe how generous Peach was being with this celebration, but he was certainly grateful for it. Hearing the news only made his excitement for MAR10 day skyrocket even more.
Kirby was in the corner, decorating the cake while wearing a classic white chef's hat. "Poyo! poyo!" he was saying as he was lining the icing on the cake.
"Wow, look at that cake!" Mario excitedly said as he observed the cake Kirby was decorating. It was truly massive, one of the biggest cakes he had ever seen. Luigi had mentioned that a second cake was being made for the rest of the guests, but this one was clearly meant for Mario himself, which only made him even more excited. Kirby was certainly putting in the effort to make this cake perfect, and his dedication was quite impressive.
Kirby turned around and smiled at Mario. "Hai!" he would wave at Mario as if wishing him a Happy MAR10 day.
"Thank you! Happy MAR10 day to you, as well! I think that cake looks amazing, I have to say!" Mario thanked Kirby for his hard work in making such a delicious cake, his excitement for MAR10 day continuing to grow with every new discovery. He could already feel his mouth watering just from looking at the cake, and he was now even more eager to taste it himself.
Kirby smiled and nodded. "Poyoyoyo" he would say before turning back to the cake and then beginning to put down berries on it, strawberries first.
Mario watched excitedly as Kirby continued decorating the cake, seeing how many different berries were being featured. Strawberries, blueberries, raspberries, blackberries- it was almost too beautiful to believe! It was hard to even believe something so gorgeous could be edible, but Kirby was certainly making it look more delicious by the second. The decorations were so detailed and stunning, and Mario was starting to get even more and more hungry just looking at it. As he was watching, Suddenly his old friend Paper Mario would fold up next to him(Literally). Being Mute, Paper Mario would hop up and down excitedly.
The sight of Paper Mario folding up and hopping up and down excitedly, made Mario smile brightly as he recognized his friend. Paper Mario was certainly an interesting fellow, being both a Mario variant and a Paper variant at the same time. He was also a good friend to him and a trusted companion, so it's nice to see he was present at MAR10 day, too. Then to make things better, Geno and Mallow appeared beside him too. "Hey Friend, Remember me? Of course you do" Geno would say holding a peace sign with his wooden fingers. "Oh how happy I am to be here!" Mallow would say as he split his cloudy body and his head and arms spun around in the air before going back down.
It certainly seemed like Mario's old friends were coming out in full force today. Not only did he have Paper Mario, but Geno and Mallow were also here, too! Geno was certainly quite the interesting fellow, with his wooden fingers making for a unique appearance. His expression and attitude towards Mario was friendly as ever, and his peace sign did bring back some memories. Mallow's cloudy antics definitely added some humor to the mix as well. Mario was certainly quite excited to have such great friends in attendance for this special occasion. It seems literally everyone was here. Rosalina, Bowser Jr, Wario and his gang from Diamond City, Donkey Kong and family, heck even Prince Peasley an Starlo showed up. "It's good to see you again Mario! Thank the Star Spirits for this awesome day" Starlo would say while grinning brightly. As if on cue Stuffwell also showed up, lifting from the ground up and accidentally swatting Starlo. "Hey mario, how's it going?" Stuffwell didn't know he had hid Starlo. "hey watch it!" Starlo would exclaim angrily. "fellas calm down, '' Tubba Lubba would say as he got between the two who were arguing.
Mario was amazed at how many people had shown up. It was truly a full house here, and it seemed like everyone wanted to spend some time with him on this special occasion. He recognized Rosalina, and even Bowser Jr, Wario and his gang, Peasley, and more. Stuffwell, as well as his partner, were also present, who were seemingly in disagreement over an accidental incident. Mario saw Tubba Lubba jumping in to intervene between the arguing parties, keeping things civil. Mario was glad to see that his friends could all hang out together in harmony, even if some disagreements were brought to the surface. As Mario would look at all the people attending the party, he would also take a moment to look at the framed picture of Charles Martinet on the wall of the hall of fame. Sure he wasn't his voice actor anymore but that didn't mean the memories weren't still very well alive.
The framed picture of Charles Martinet on the wall of the hall of fame was a lovely sight to behold. It was a reminder of the good times Mario and Charles had worked together, as well as a celebration of his legacy as the voice of Mario. Despite the changes since the Mario 64 days, the memories still held strong, and Mario's love for his former voice actor and friend was still present as he observed the picture thoughtfully. He even felt a bit nostalgic, taking a moment to reminisce on the wonderful times they had shared together.
There was just one thing that kind of bothered Mario. Where was Peach? she wasn't there to greet him when he entered the main room. He didn't know where she was. As this thought lingered, everyone had arrived by now and Mario went back into the main room and would see the whole room was crowded...Except Peach. Everyone was ready for Mario to come out and when he did the main cast(Excluding Peach) would roll the cake on a cart to Mario. The cake was a Jumbo sized version of the one from Mario 64 but larger and over 6 feet. It was awe inspiring to look at. "Happy MAR10 Day" Literally everyone would boom. All of them also had their own slices of the other cake Kirby had made so they were content with this celebration.
The whole room was packed with Mario's friends and loved ones as they celebrated this special occasion. Everyone had come together to cheer him on and celebrate MAR10 day with him. The cake that was brought out was indeed awe-inspiring. It was massive and looked delicious, just as advertised by Kirby earlier. Mario was touched by the gesture, seeing that everyone wanted to share in the celebration with him. It was also nice to see that everyone else was being included with a slice of the smaller cake made by Kirby. This really was an amazing MAR10 day already!
Like out of an SMG4 video, Mario would expand his jaws as wide as he could and stuff the ENTIRE cake into his mouth. Despite how efficient he was at stuffing the whole 6 foot cake into his mouth he still got a lot of icing on his lips. His cheeks swelled like balloons as the contents of the cake...and something else filled them. Nobody(Except Kirby) really noticed what Mario was doing. Kirby would have stepped in and told Mario that this was not a good idea but Kirby had a similar experience with his 20th anniversary so he didn't move, just watched as Mario had the entire cake in his mouth. Kirby had taught Mario how to expand his jaws like that so he felt glad watching him use it.
Mario had done the impossible, and successfully stuffed the ENTIRE cake into his mouth...with only a few icing-covered lips to show for it! Not only did it prove to be a spectacle that no one had seen before, but it was especially fun for Kirby to watch as he was partially responsible for teaching Mario how to do it. Kirby was certainly pleased with Mario's ability to put his teachings to use on such an amusing occasion. Sure there was a strange taste in Mario's mouth aside from the cake but that might have been some of the confetti that fell on it. Mario would begin to push the cake and whatever else it was down his throat. he pushes as hard as he can pushing the cake and that other thing down his expansive esophagus like he was eating a Mega Mushroom
Now that he had successfully swallowed the cake whole, Mario would take an extremely satisfying breath. His stomach was now 6 feet in diameter but it was held by his Overalls. Mario licked his lips and let out a puff of air from how great that felt to eat. He felt the cake was somewhat heavier than he expected inside his belly but was not complaining "Ahh~ That was-a scrumptious!" Mario would say with a satisfied moan as a compliment to the Chef.
What Mario didn't know was that he had swallowed the cake...and Peach was in there. She had unfortunately not realized Mario was going to swallow the cake so now not only was the cake in his stomach but so was Peach too. Mario wasn't aware that he had accidentally swallowed Peach, but he had. With a wide, satisfied grin, he patted his stomach as if it were already full with the cake. However, unbeknownst to him, Peach was also inside and just a little bit squished. Mario sighed as he sighed in contentment while unaware what had really just happened due to his over-eating of the cake.
Peach would move the cake around her out of her face and realize what happened. "N-no...He didn't...?" Peach thought as she put her hands over her mouth as the stomach walls squeezed her against the cake she was surrounded in.
Oh no. Peach started to realize this was a very bad turn of events when she realized she was inside of Mario's stomach, and to make matters worse, it seemed like he wasn't even aware of her presence and had just eaten her whole. Peach's body was squeezed against the cake as it was pushed around by Mario's digestive juices. Naturally Peach began to try and get Mario's attention. "MARIO!" She would do her iconic cry as she tried to push at the stomach walls that contained her royal figure and the cake.
Sadly Mario doesn't hear it. His stomach was so strong from how many non-food things he had eaten in the past. Especially Bob-ombs which blew up in his belly a lot but didn't make a dent. It also didn't help that Mario's overalls also muffled her further. Mario just couldn't hear Peach as he stretched his arms up and then sighed. "Ahh...feels good to have such a Delicious cake inside my stomach, I hope a-the Princess is around" Mario would say unaware he ingested her.
Peach would realize just the danger she was in and began to struggle. She slammed her heels into the stomach wall in front of her and also was elbow jabbing the walls behind her. "MARIO! PLEASE! I'M IN HERE! HELP ME!" She cries, finding the nasty sludgy cake around her disgusting the way it smeared against her clothes.
Peach's actions would not lead to any favorable results, unfortunately. The walls on the stomach were incredibly tough, made possible by eating so many other tough objects in the past. She tried to kick, jab, and scream but the cake was so thick that it coated everything around the peach and she had little leverage. She couldn't get out on her own, she was effectively sealed away in Mario's stomach along with the dessert. Mario would still be unaware the princess is inside him so he would decide to go play some of the games hosted by his friends. "Hey! Mario! wanna participate in a race, Mario Kart style? or do you wanna have a friendly battle? Smash bros Style?" The Inkling Girl would ask as she had experience with both mario kart and smash bros. She also would gently poke at his engorged stomach tucked into his overalls which she too didn't know contained the Princess.
Mario would smile widely as he was excited for these upcoming events. He thought playing more games with his friends was a great idea to celebrate the MAR10 day holiday! But as the Inkling Girl poked his stomach he seemed a bit bothered, especially since it was such a huge stomach. He would shrug it off as he probably thought the poke was to point at his huge stomach as a result of him eating so much cake. "Oh-a yeah, definitely I'll-a race with you! I'm always-a the best at Mario Kart!" Mario confidently proclaimed.
As Mario would get into his Kart, he had to improvise because his stomach made it hard to use the controls, so he got into a Chevy which was better to hold his stomach between his legs. The only problem was the bottom of the wheel pushed against the top of his stomach. This caused Peach slight pain as she felt it on the back of her head due to the placement. "MMF" Peach cries trying still to get him to hear her before he starts racing.
Mario would quickly realize something was a bit off since he couldn't fit comfortably in the Kart. It was clear he was too big to sit in the vehicle and the steering wheel was also an issue since his stomach was pushed against it. He would improvise and hop in the bigger car, but he didn't know it was actually worse on Peach. Peach would be heard trying to cry and make sounds of struggle but Mario was now too into his kart race to really respond or hear her...especially since all he could hear was the noise of the engines. As the race began it was basically the end for Peach because he was completely unable to hear her and know she is inside him. As Peach feels the stomach around her vibrate from the car driving she began to feel the sting of digestion, her clothes are already gone leaving her own body as the last thing to digest...aside from the cake.
Peach tried to scream out one last time but could not get a sound out now. Her body began to be squeezed against the cake from the car engine as well as the stomach wall. She began to feel the digestion sting from the enzymes as she was slowly being dissolved into a liquid. As the race progressed she could feel bits of her being eaten by Mario's stomach. Mario was too involved in the race to even respond. The other racers would notice Mario's lack of speed even saying that he's falling behind but they just didn't know it was because of the huge amount of cake and the Princess he ate. No other racers knew.
Peach began to cry. "Noooooo!" She cries as her body is being dissolved by Mario. She wasn't too heartbroken...If she was going to spend MAR10 day then she'd be at least happy she was spending it with mario...she just never imagined it would be like this.
Peach's cries would be sadly muffled by the cake which covered and filled her entire body, and her head felt like it was filled too. Peach was at least happy to spend this special day with Mario, but in the worst way possible. Her body was beginning to be dissolved into his stomach contents as the enzyme from his saliva broke her down completely, even down to the skin. As her tears fell down, the salt water only made Peach's digestion worse as it was absorbed into the cake that was left inside Mario. It was a truly sad end to MAR10 day...not for Mario, though.
As Mario won the race he would stand on the podium and be holding his trophy. By now Peach was dead, digested into Mario's body and making his ass rounder than Tubba Lubba was wide. His stomach had retracted and Mario felt satisfied, but also embarrassed he had a huge booty, he wondered if he could even fit in a pipe again because he's Dummy Thicc.
As he was stepping off the Podium to go find peach he would feel like he had to burp, he felt something coming up his throat. He felt confused but felt something strange get pushed up his throat. He burped and Peach's crown came flying out of his mouth and landed on the ground with a clatter. "Huh? This is..." Mario looks at it confused. Why was Peach's crown in his belly?
Mario leaning down to look at the crown was enough to make his booty clap. Mario then realized what this meant "Mamma-Mia!" he exclaimed as he realized he had somehow eaten peach without knowing. He squeezes one of his buttcheeks in realization that she's been digested.
His booty squishes under his bum, it was like a plunger from how it felt on his gloved hand. But he knew that he got it from ending the princess. Mario is now shocked as he realizes what has happened, but also slightly flattered at the same time with his new curves. He begins to squeeze his butt cheeks for fun, just for the sensation. "Mmmm...Mama mia...I mean she won't get kidnapped anymore" Mario says, squeezing in delight and in dismay over the tragic fate of the princess.