Cynthia farted loudly since she challenged Rika to a farting contest and it was clear that the latter had quite a lot to learn from a professional pooter. "Hmm you have quite the gas but you're not up to my level yet!"
"Then by all means please teach me!" Rika pleaded happily upon fanning the reeking air emitting from her dump truck since her farts hit her nose instantly. "I definitely have the stink patented down!"
"Well it's not just the wonderful gross scent but the force you let it out and the sound." Cynthia pointed out upon holding her right leg to fire out a bassy tuba toot. "I had to learn how to manage that years ago!"