Mia tore another wipe from the pack with an audible snap and muttered another curse under her breath. She pressed the back of her wrist against her nose.
“Ughhh! I cannot believe this is my life right now!” she groaned.
Lily stood a few feet back, arms crossed, grinning with amusement. “I mean…you’re the one that wanted to move back in, remember?”
“Yea well I didn’t volunteer to become the poopy pamper attendant!” Mia shot back, glaring up at her. “Why is this our job? Huh?? Mom’s the one who decided to keep him in diapers…not me.”
Lily shrugged, completely unfazed. “Because it works, that’s why. You know it does. Ever since she started this, there haven’t been any… incidents. No missing panties from the laundry. No messes in the bathroom. No ragers with his buddies. The system works.”
Mia stared at her. “Yeah, but it stinks! I don’t care if the system works, it shouldn’t be my problem at nine in the morning when I’m hungover.” She let out a long groan and reached for another wipe.
“Well maybe…” Lily said sweetly, “…if you hadn’t rolled in at 2:30 smelling like tequila, you’d feel a little more chipper about it…You know the loser always makes his diaper dumps first thing in the morning. Gotta be proactive, girl!”
Mia gave her a flat look. “You’re enjoying this way too much...”
“I am,” Lily admitted, laughing. “Mostly because it’s not my turn!”
Mia peeled the tapes of the diaper open one by one with sharp rips. She pulled the dirty padding open, unleashing a warm, eye-watering wave of stench that hit like a slap. She gagged once, hard, then again, before finally collecting herself and using the front flap of the diaper to scrape away the bulk of the filth in broad, downward sweeps, folding the soiled padding over itself to trap most of it.
“So fucking gross…” she muttered under her breath, unable to actually stifle another gag as she worked.
Lily tilted her head, still grinning. “Oh come on…it’s not that bad!”
Mia gagged lightly again and shot her sister a glare over her shoulder. “You wanna trade?? Be my guest. Here…” She held up a soiled wipe, dangling it like a dirty offering.
Lily took a dramatic step back, hands up. “Nope! Na uh! I didn’t say I was volunteering! Plus, you’re much better at it than me anyway…”
“Yea, well maybe you could use the practice. Mia scoffed, “this isn’t exactly a skill I can put on my resumé…” she gripped her step-brother’s ankles, lifted his legs straight up, knees bent toward his chest, and held him suspended while she wiped. Long, firm strokes from the top of his crack downward, spreading his cheeks wider with her thumbs to get every smeared fold and crease. Each dirty wipe went straight into the open diaper below him. She chased streaks along the inner skin until it was mostly clean, her face twisted in disgust the whole time.
She paused, tilting her head to get a better look at his bottom. The skin was bright, angry red, raw-looking, mottled with faint welts that hadn’t quite faded.
“Wait…why is his ass so red? He wasn’t in that dirty diaper long enough to get a rash.”
Lily’s smirk turned sharp and knowing. “Oh, Mom lit his ass up last night! I thought she was never gonna stop. Surprised you didn’t hear his wails over the music at the bar.”
Mia let out a low, incredulous whistle, shaking her head. “Jesus. No wonder he’s quiet this morning...what did he do?”
Lily shrugged, “I dunno? Probably touching his diaper without permission, or playing with his pecker again. Or hell, maybe it was just ‘because’. I don’t remember, but honestly: who cares?”
They both giggled at that. But when Mia finally lowered his legs back to the mat, they gasped simultaneously.
“Oh my god!” Lily exclaimed, “look! He’s hard!”
His penis was standing straight up, throbbing and twitching and leaking little drops of pre-cum.
“Ewww!! Gross!” Mia barked, smacking the inside of his thighs reprimandedly, “We’re your step-sisters!! And we’re changing your dirty diaper, you fucking freak!”
He didn’t respond. Just whimpered and stared at the ceiling, cheeks flaming, breathing shallow.
Lily leaned in for a better look. “I still can’t get over how fucking tiny it is!” She snorted. “Pathetic.”
Mia shook her head, still holding his gaze like she couldn’t believe it. “Seriously? This is what gets you going? Us wiping your ass like a tottler?”
Lily handed her a fresh, crinkly diaper. The one with little cartoon rockets, and held his legs up so Mia could slide it underneath him. She grabbed the powder bottle and puffed several thick clouds over his groin and bottom, the white dust settling on the stiff shaft and freshly cleaned skin. She rubbed it in briskly, clinical, no-nonsense.
“If you fucking cum right now, I swear to God…” Mia muttered under her breath as she pulled the front up snug over his hard-on, adjusting the padding so it sat flat without gaps, and taped it closed: bottom tapes angled up for a secure seal, top ones pulled tight. She gave the front a firm, dismissive pat.
“There! Baybee brudder all padded up!” Mia mocked in babytalk.
Lily watched the whole thing, still smirking. “You know…there are fetish sites full of people who’d pay good money to watch this. If we’re gonna change filthy diapers every morning, might as well video it, make him do some embarrassing poses or whatever, and turn it into a side hustle. Extra cash for our trouble.”
“I’ll let you handle that.” Mia scoffed, rolling her eyes, balling the soiled diaper with all the wipes inside and tossing it into the pail with a thud. “You’re disgusting.” She spat at him as she stood, rubbing her temples. “I need a shower. And you’re feeding him this morning.”
Lily’s grin dimmed for half a second, then she shrugged. “Fine. Lesser of two evils.” She looked down at him on the mat, voice syrupy-sweet and mocking. “Come on, diaper dork. Crawl to your high chair for num nums.”
Mia flipped Lily off as she headed for the door. “Enjoy your breakfast shift, asshole.”
“Love you too,” Lily called back, nudging him gently with her foot. “Let’s go, big boi. Sissee’s got oatmeal and a bib waiting!”
“Fucking ridiculous” Mia muttered under her breath and disappeared down the hall, leaving him to crawl his freshly powdered, freshly taped ass that was still tender from last night’s spanking down the hall while Lily cooed after him. Paw Patrol still playing quietly in the background.
