Reid tossed and turned in his bed, unable to get any shuteye. The stench of his sister's farts lingered in his nostrils, each breath of air reminding him of the nightmare from earlier. 

"Ughh!" Reid groaned, burying his face in his pillow.

"Can't sleep?" a familiar voice asked. Reid took his face out of his pillow and turned to the bed parallel to his. It was his twin brother Zach looking over at him.

"Man I can't get a wink." Reid replied, dropping his head back onto the pillow. 

"What's bothering you dude?" Zach questioned with a curious look.

Reid looked away from his brother. He started thinking of his sister's massive badonkadonk dropping onto his face. "N-Nothing..." he stuttered, shaking his head. 

Zach rolled his eyes. "Well whatever, I know what will take your mind off your troubles. Let's do some dares." 

Reid gave a look of concern, "You sure about that? It's pretty late." 

"C'mon man it'll be fun. Here i'll dare you first." Zach pushed.

Reid sat up and sighed, "Alright. What are you going to make me do?" He watched as his brother pondered on a dare to give him.

Zach's face lit up, "I know! Go steal one of Lima's panties." Zach told him.

With a roll of his eyes, Reid complied and stood up. He opened his door and looked down the empty hallway to make sure nobody would notice him. The absol boy quietly snuck out of his room and shimmied down the hallway. He could hear the tv on in the living room, no doubt his mother watching some movie. Reid reached Lima's bedroom door, ready to raid it. He gently opened the door and peeked inside, feeling the warm air brush against his face. 

Across the room he saw his sister in a grey over-sized shirt and a grey pair of panties on, sleeping in her bed. She laid on her stomach snoring loudly which made it easier for Reid to sneak in. He tip toed into the room and headed for her bed. He crouched down and looked around the floor and found a pair of his sister's purple floral panties and grabbed them. Reid heard his sister's snoring halt and he glanced over to his sister to make sure she was still asleep. 

Lima's stomach growled before she grunted and let out a small toot, then laid back down snoring on her bed. Reid shivered at the noise, but was glad his big sister hadn't awoken. He turned for the door and held his nose so as not to smell her gas. He left the room and shimmied back to his bedroom. The boy raised the panties up to present to his twin. 

"Not bad bro. But I bet I can do it faster." Zach stated. Zach rushed passed Reid and snuck down the hallway. Reid sat down on his bed and dropped the panties on the floor still upset he can't rest due to his mind being haunted by his sister's plump rump. He rubbed his nose as Zach walked back in the room.

He raised up a pair of green watermelon panties. "See? Told you I could do it faster." the boy exclaimed. Reid rolled his eyes. 

"That dare was way too easy." Reid explained. Zach pouted and glared at his twin brother. 

"Easy huh? So you want a harder dare then?" Zach challenged. Reid nodded, "Yeah, give me a real challenge." A smirk grew across Zach's face.

"Alright then, how about this." Zach stated. "Go smell Lima's butt for one whole minute." 

Reid's eyes shot wide open. "Wh-what!?" Reid spouted. He visibly panicked at the demand. The last thing he wanted was to be near Lima's butt, let alone smell it. 

"You said you wanted a harder dare, so go do it!" Zach pressed, folding his arms. 

Reid groaned and snuck down the hallway with his twin brother close behind. "Why the hell are you following me?" Reid whispered. "I gotta make sure you actually do it." Zach said. Reid sighed and continued to their sister's bedroom. They opened the door and walked to the back of Lima's bed where her butt was facing. 

Reid gulped, "So just sixty seconds?" 

"Yeah, now hurry up." Zach pressured. Reid got onto the bed and poised his head above his sister's enormous ass. 

"Sixty seconds" Reid thought to himself. He took a deep breath before plunging his face into his sister's near bare cavernous asscrack. 

He felt her soft fur rub against his face and the warmth and sweat from her body wash across his face. Her fat cheeks squeezed his head tightly while he began to sniff. Reid could hear his brother quietly counting over Lima's snores. Each second passing seeming like a minute long from his perspective. Lima's musk was more potent than usual, likely due to the temperature of the room giving her a bad case of swamp ass. 

"Twenty, twenty-one, twenty-two." he heard Zach count. Drops of booty sweat dripped down his face with each each number counted. Reid took another sniff to receive a nose full of stink from his sister's massive hindquarters to linger in his nostrils. Even thought it was the same day, Lima's stink had a different scent to it, almost sour.

"Forty-eight, forty-nine, fifty." Zach continued. "Only ten seconds left." Reid thought, getting another huff of sister stink. 

A low growl emitted from the depths of Lima's body. "Oh no." Reid thought. 

"Fifty-three, fifty-four, fifty-five." Reid just needed to hold out a little longer. He hoped to get out before the disaster that awaited him besieged him. Reid took another huff as another rumble from Lima's bowels was heard as she grunted. It was too late.

BBRRUUUMPT!

An extra warm fart rushed across Reid's face and up his nose as he huffed. Reid groaned in disgust as the stink of his sister's gas immediately hit him full force and no doubt trapping the stink of her gas in his senses on top of her earlier doses for another day.

"Fifty-nine, sixty!" Zach exclaimed. Reid took his head from Lima's butt and got off the bed. He panted with sweat dripping down his face. 

"I can't believe you actually smelt her fart! That's so disgusting!" Zach said, barely holding back his laughter over his brother's predicament. Reid was unimpressed. 

"Shut up asshole." Reid snapped, raising a fist aimed at Zach. He wasn't afraid to get physical with his brother, after all Reid was the stronger brother.

Zach flinched, "Okay okay take it easy bro." Zach laughed. 

"Whatever. It's your turn now." he retorted. Zach's laughter halted. He stared at Reid with a concerned look and gulped. 

"Oh, ye-yeah... right." Zach stammered. Zach slowly got onto the bed and poised his face above Lima's butt. "Sixty seconds. And don't count slow." Zach stated.

"Yeah yeah get in there already." Reid rushed. He watched his twin plunge his face in his sister's buttcrack.

"One, two, three." Reid began. He heard Zach start to sniff. It was kind of funny for Reid to see his brother's head disappear between Lima's colossal cheeks, probably because it wasn't him trapped in that butt for a change. He had been beneath and between that butt so often it was almost a second home for him.

Reid kept counting. "Eighteen, nineteen, twenty." 

*GRRRRrrrr* The growl returned, indicating another fart soon to come. Zach's sniffing stuttered as he feared the approach of Lima's gas.  Reid was aware that Zach knew about his experiences beneath Lima and yet he still made him go near her. Now Zach was about to receive the same treatment in return.

An eery rumbling came from Lima's bowels right before releasing another blast.

pbrraARRT!

Zach's coughs could vaguely be heard from the canvas he was stuck inside.

"Forty-six, forty-seven, forty-eight." Reid continued to count. He could tell Zach was struggling to stay in their sister's butt due to the fact he held no tolerance to her stink, while at least Reid held a small amount of tolerance. 

"Fifty-five, fifty-six, fifty-seven." Reid enjoyed watching his brother inhale their sister's stink, he was well deserving of it. However, Reid would not be content with just letting him out after the sixty seconds was up. He devised a plan to make him suffer more. Reid carefully got on the bed next to Zach and waited with an angry look on his face.

"Fifty-nine, sixty!" Reid spouted. As Zach lifted his head to get out of Lima's crack, Reid pushed Zach's head deeper into her crack with one arm and held Zach's arms with his other arm to pin him in the absol girl's ass. 

Reid held his brother down as he struggled to no avail. Another rumble emitted from Lima's bowels.

BRAArrp!

The absol boy heard his siblings cries for help as he was forced to breath in noxious fumes. "Still think it's funny, bitch?" Reid growled. Reid had no sympathy for Zach. 

PRRRRT! PHRRrrrt! brrrAAPT!

Zach was buffeted by a series of nasty farts. Reid felt Zach's struggling weaken, surely from the lungfuls of Lima's warm farts he breathed in.

"That's it, breath in all that gas." Reid taunted.

Zach's struggles stopped and his arms went limp. All that was heard was Lima's snoring. 

He leaned down to his brother's unconscious body. "Enjoy your nap, brother." Reid stated. He got off the bed and spread a sheet over Lima to tuck her in and trap Zach in a dutch oven just as another fart blurted out from Lima. Reid proceeded to sneak out of the room and back to to his own room. 

He threw himself onto his bed and fell fast asleep, knowing his twin would spend the rest of the night suffering within the confines off Lima's dank asscrack and smelling her putrid farts.