Ana Ayumi sat on the edge of her bed, fuming. She glared at the empty fridge, thinking about how Paola had finished off everything inside. It was unacceptable. With a huff, she stood up, determined to teach her little sister a lesson she wouldn't forget.
"Paola," she called out, stalking towards the shared bathroom where she heard the sound of retching coming from. She pushed open the door and found Paola crouched over the toilet bowl, heaving up nothing but bile.
"I'm going to feed you now, but not with food," Ana said, her voice cold and methodical. Paola looked up at her, terror in her eyes. She knew what was coming.
Ana walked over to the bed and sat down, spreading her legs wide. She wore only a tiny thong that barely covered her plump, round ass. "You're going to worship my asshole, and every time I fart, you're going to swallow it."
Paola whimpered, crawling over to her sister on all fours. She stared at Ana's gaping asshole, feeling the warmth of her farts wafting towards her face. She remembered how Ana had loved farting in front of her growing up, and how she had always found it mortifying. Now, she was going to pay for it.
Ana began to massage her clit, the sensation driving her wild. She started farting gently, pushing the air out of her tight ass. Paola leaned in closer, her mouth opening instinctively. With each passing second, Ana's farts got stronger and harder, rippling through her gut and exploding from her asshole in powerful bursts.
Paola tried her best to swallow them all, choking on the putrid air that invaded her mouth. She could feel the warmth spreading through her stomach, the stench filling her nostrils. But Ana was relentless, continuing to fart and demanding that Paola swallow every last one.
Hours passed, and Ana's farts grew weaker, finally petering out. She looked down at Paola, who was curled up on the floor, whimpering softly. Ana stood up, her legs shaking from the intensity of her orgasm.
"Get up," she commanded, her voice dripping with contempt. Paola slowly rose to her feet, her mouth still reeking of ass. Ana grabbed her by the hair and yanked her close, pressing their lips together in a brutal kiss. As they broke apart, Ana reached around and grabbed Paola's tiny dick, stroking it slowly.
"Get on your knees," she ordered, and Paola complied without hesitation. Ana climbed onto the bed, spreading her asshole again for her sister to worship. Paola leaned in, her tongue tracing the tight ring of Ana's asshole. She could feel the warmth emanating from it, anticipating the next volley of farts.
And so it began again. Ana's farts were like a tide, washing over Paola in waves of stink and humiliation. But this time, Paola was ready for them, swallowing each one with renewed vigor. They continued like this for days, Ana using Paola's body as her personal fart filter.
Eventually, Ana grew tired of the game and let Paola rest. She watched as her little sister curled up in a ball on the floor, trembling from the aftermath of their twisted bond. But even as she slept, Ana couldn't shake the satisfied smile from her face.
