Toadette farting while she was out racing about in the various Mario Kart races was to be expected, but this time was a bit more special due to Toadette deciding to go into a race in an altered form. Toadette was zipping around on her Quack Bike while in her diaper pooping as usual, you see, going around the Wild Woods as she found a bunch of weird power ups that were hanging out just outside an abandoned house. Being the curious mushroom girl that she was, Toadette used a special mushroom she picked out of the obscure item bunch to make her body more human like in line with her two fellow flatulent human girls that she would later end up joining. Of course, Toadette would discover that her new altered humanoid body wouldn't fit on her Quacker Bike, with her enormous fart causing the bike to break apart to her dismay.
"Aw man! My farting big butt is too enormously smelly to fit!" Toadette exclaimed as she placed her hands on her face, getting an idea as she continued to break wind. "Although since I'm in this new form, it gives me an idea...!"
Later on, Toadette managed to find the two gassy princesses of the Mushroom Kingdom, grabbing one of the unused bikes hanging out by the garage that was near the forest leading into the turnpike towards the city. Princess Peach Toadstool farted a brassy, deep pitched tuba toot that puffed up the back of her white pants, with Princess Daisy farting a deeper pitched poot that became raunchy, both of the girls laughing as they high fived each other for their gassy expulsions. However not to be bested by either of the two human faring princesses, Toadette farted the deepest pitched bassy fart, so much that she pooped herself in addition to her thunderous butt burp ending on a wet note, making her blush as the back of her pants were completely brown around the entire rear area, with the three gassy girls wearing biker suits as they were all riding on the fastest bikes in their class, the Mach Bike for Peach and Daisy, while Toadette had the pink colored Sugarscoot that normally would go to Peach or Birdo, with the trio of farting females being at the Moonview Highway.
And speaking of Birdo, the pink female dinosaur friend of Toadette and Daisy was watching this in disgust from the top of one of the many skyscrapers overlooking the highway within the city, shaking her head as she had binoculars over her eyes. "Ugh, why can't those three just learn to be normal and not fart their brains out for once...?"
"Oh yes, this feels so good!" Toadette joyfully proclaimed as she ended up farting a thunderous storm of tuba toots that made her poop her pants even more, fanning the air with her right hand while holding onto her bike with the other. "I'm so happy that I have a diaper within this smelly biker suit!"
"Ha ha!" Yoshi added, drinking cherry flavored, approved Nintendo capri sun while watching the race within an apartment from, you know, IN THE BATHROOM.
"Wow, Toadette! You're mastering your farting just like us!" Princess Peach proclaimed with her and Daisy farting while doing wheelies on their mach bikes.
"Ha! I gotta say, you got to this farting gig real good, Toadette!" Daisy laughed in agreement, seeing the gassy Toadette speed ahead to take the lead.
Obviously taking the lead in a chaotic race wouldn't be the smartest thing to do, as Toadette would learn the painful way as she smashed into a bus to immediately being rammed by Wario, then getting knocked into the air by Funky Kong (who in turn was using the power of the Star), and then to finally being humiliated further by Dry Bowser, who flattened her like a pancake due to the power of the Mega Mushroom. Of course, this didn't deter Toadette as she shrugged it all off with a smile and good old fashioned gas passing, getting attacked by all sorts of different items as she managed to get back right up to speed due to her great acceleration.
"Waht da hell?" Wario commented as he scratched his head in confusion.
"Fuck I know," Funky Kong remarked while just shaking his head.
"Don't think about it," Dry Bowser spoke up as he was unfazed by this due to him being used to it.
Toadette farted right by them using the power of her constant flatulence, literally leaving the three heavyweights to eat her dust. It was then that the audience watching within the buildings populating the city streets proceeded to see Toadette shit her pants even more noticeably.
"Aw man, not again!" Toadette groaned in embarrassment while pooping more.