*PRRRPPPFFFTTT!*
Without warning, her growing butt bellows out another loud, putrid fart, Ashley grinning as her bubble butt quakes with the expelling gas. "... Weeellll..." Her butt continues to pump out small bursts of gas, each one longer, louder, wetter and smellier than the last. By the end of it all, Ashley has a fixed grin. "Screw it, I'm drinking the entire thing!" Rushing back through a potion aisle with her new 'wide-load' swaying side to side as it knocks a few empty potion bottles and vials to the ground, she grabs the unlabeled bottle and chugs the entire thing down, letting out a small, cute burp afterward.
Quickly climbing the basement stairs, Ashley makes her way to her bedroom, Red opting to stay outside. Far, far away outside. "Yeah, this should be more than enough room-" Sure enough, her butt starts to build up pressure, Ashely clenching her teeth and closing her eyes as her butt seemed to get stiffer and stiffer from all the building gas. Before she let go, Ashley has a 'bright idea'. The longer she holds it, the sweeter the pay-off will be. So holding her two now metre long butt cheeks together as she started to turn red from the pressure she waits. And waits. Her cheeks start to slowly rumble, seemingly gurgling for an outlet to 'let-out' whatever was building up inside. After another 5 minutes of grueling waiting, the teenage witch decides it's time.
She quickly releases her hands, only to find her butt cheeks to grow strangely quiet. "What!? What a rip-off!" She starts to pout, for once losing her cool over her sudden inability to... Fart. "Seriously, what the fuc-" After a couple seconds of delay, her ass explodes. Not literally, of course. Yet her gas IS an explosion of colossal proportions.
*PPPRRRRPPPPFFFFFPPPPTTTTT*
Like a miniature atomic bomb going off in her mansion, the entire mansion trembles, windows falling and the like. The sound can be heard throughout the entire city, echoing for a few moments, near breaking the sound barrier. Her tights are nearly ripped to shreds by the atomic fart, with the rest of her bedroom having a thick, hazy, green fog covering it. It smells absolutely foul; everything seems eerily stained green, and looking at Ashley's now exposed cheeks, one could see a good deal of some 'stains' were left on the now absurdly large cheeks. All that was left was a panting, blushing Ashley. "*Huff...* Oh man... *Breaths in* That was... The..." She takes in a deep whiff of her own funk. "Single best moment in my LIFE!" She starts laughing as she awkwardly heaves herself back onto her feet, her legs slightly expanding to accommodate the new junk in the rump. She doesn't have much time to celebrate however: taking a quick glance through the window, Ashley spies...