It was a nice day to be out fishing in the beautiful tropical region of Alola on 1 of its four islands, as Mallow and Lana were demonstrating by being out on the giant pond while riding on a wild Araquanid who was willing to have people ride on it. And that's when 1 overall muffled fart from Mallow set things into context for what was about to come.
"Ooh, excuse me!" Mallow giggled with a sly smile and a right hand on her face, winking in an excited manner.
"Goodness, that was loud!" Lana gasped with her left hand over her mouth. "I didn't think it could burst like that!"
"Well you can't help it when you have so much food like me!" Mallow laughed while breaking wind again. "I just love my cooking!"
Lana blushed and proceeded to lean forward, letting out a wet fart herself. "...I happen to like it too."
Mallow's eyes lit up as she clapped her hands together. "Hey, I just got an idea!"
"I think I know what it is..." Lana said with a smile on her face while blushing, casually fanning the air while feeling her stomach rumble.
The Araquanid was taken aback at what the gassy girls on its back proceeded to do, feeling how hot and loud the stinky bouts of flatulence were as it started to lightly rain. Lana was quite happy that she was able to share in her held in fart gas with Mallow, who always loved any opportunity to be pooting away her tooting scents.
"Woo, now you're -POOT- showing it Lana!"
"Well thanks Mallow, I try my -BLORT- best to push these out!"
"Better not be too hard, you know what -BRAP- happens when you force it!"
"Heh, I kinda figured that out the -FRRT- hard way."