Written purely for fun (and I had /a lot/ of fun writing this) in maybe 2-3, maybe 4 hours? 3.5k+ sinful words. Enjoy.
***
On a regular Saturday afternoon, the Roberts family went about their daily activities: 18 year-old Alex was in the living room annoying his twin sister, Allie, by playing video games while she was studying. Their mother Linda was tending to her list of chores: laundry, dishes, dinner, the floors, etc; while her husband, George, was working in his study, getting started on his workload.
"Ugh, can you turn that crap down, asswipe?" sneered Allie with her crinkled button-nose.
"No, I can't," beamed Alex. "You'd have to make me first." Allie knew after the past dozens of fights she'd have no chance of competing, and a less stubborn girl she wasn't. The chestnut-haired girl wanted to stew on her side of the powder green couch, silently starting daggers at her brother.
Meanwhile, Linda was left satisfied after conquering the mountain of stacked dishes she liked to cutely call: Mount China. Because it was a mountain of china, she'd laugh with her friends. Next was tackling the laundry.
"Y'know, guys don't like it when girls curse. It's very unladylike," Alex childishly emphasized, button mashing his way through the virtual hordes of decrepit, decaying zombies.
His sister felt a deep stab at her ego. She sputtered for a moment, "Yeah-!... Well... You're a virgin!"
Alex choked on his laughter. "C'mon, Allie," he smirked, glancing over at her to say, "you know that's weak-and a lie; we share a wall. A thin one, at that. Guys don't like liars either," he snorted, engrossed in his game again. Speechless, and even more angry, she couldn't even focus on her studies. One more stab like that, and she'd tear her textbook apart and make him eat it then pay for it.
At that moment, none of the family members would've known a strange gas leakage throughout the house-starting at the first floor. Nothing deadly, but peculiarly pheromone.
While Allie was about to bite her twin brother's head off, Linda fetched hers, her husband's, and her children's laundry. After opening the washing machine, the mother chastised in her head whoever was the last person to leave the still damp, mil-dewy clothes sitting in this metal incubator. She shook her head in disappointment as she loaded the machine with most of the dirty laundry and started the load. Afterwards, she carried on through the kitchen, cleaning the counters and reorganizing whatever she could.
As for the twins, Alex took the remote and began to turn the blaring TV even louder to scorn his irritated sister. At this point, his sister felt a pang in her head from not blowing up on him; but as the volume increased in increments, her thoughts turned more malicious and vitriolic; whereas her brother was cooly smirking in victory. At this point, it wasn't about studying anymore, this was about respect and principle.
After procuring enough elbow-grease, the matriarch of the home finally managed to see her now clean counters sparkling. Before she could move on to her next chore, though, Linda noticed the difference in temperature. Suddenly, she felt more sweaty than usual after cleaning. She sighed as she wiped her forehead. This was strange; the busty woman would normally feel chipper and practically bounce as she'd perform her duties around the house. But now she had other duties she wanted to perform in mind. Linda bit her lip as she felt her private area tingling and her clothes tightening.
Back in the living room, Allie was almost at her wits end. She glared at her brother who was holding back a wide grin. The petite girl tried meticulously piecing together a genius plan to get revenge. She could throw a bucket of Legos outside of his door... She could start an embarrassing rumor around school... She could fill his shampoo with Nair... Allie smirked at that one, imagining her brother frantically running around wondering how he could possibly cover his bald head. She could empty a vanilla pudding cup, refill it with mayonnaise, and reseal it. She could suck his cock.
Allie froze, mouth dry, eyes widened and heart skipping. Suck my brother's cock? she thought, almost gagging. And then, a heat wave smothered her. She didn't understand it, but her anger mixed with this weird arousal. Allie looked at her twin brother, who was minding his own business, still engrossed in his video game and felt a shudder go down her body.
"H-hey, did it just get hot in here," she asks, playing with her T-shirt collar. It was loosely fitted, yet was suffocating her.
Alex shrugged nonchalantly. "Yeah, I guess," he muttered, pawing at his crotch. Her eyes dotted towards there, and she could spot his growing tent. Saliva built up in her mouth before she swallowed. Subconsciously, she wanted to swallow something else.
Meanwhile, Linda knew she needed release. She didn't know how or why she felt the need to, but she did. The mature woman eyed anything in her sight that she could use and almost gave up until she heard something. The washing machine clanging. A lightbulb brightly lit above her head. She peaked outside the doorway to see her daughter intently eyeing Alex while he's playing his violent video games. She practically skipped towards the machine, excited and invigorated.
Simultaneously, Allie started to entertain her wild, titillating feelings. She began to subtly take off her top, not that Alex would've noticed anyways. As she stealthily removed articles of her clothing, her brother was lost in his own little world. Was he hot? Yes-was he also painfully aroused? Double-no-triple yes! But he thought it was normal considering he almost always felt like that so no alarm bells were raised. But for Allie, she needed her release. No longer was her skin imprisoned by cloth, yet her body still sweltered.
Through half-lidded, wanting eyes, a side of her Allie never knew emerged from inside, feeling arousal so intense she shook. Her hand unconsciously went towards her sopping, aching pussy. Allie whimpered as her fingers slowly fucked her warm, fleshy hole. She bit back her moans, tears prickling her waterline because she just wanted release. The girl almost lost her breath from holding her sultry noises. Allie hungrily stared at the unassuming boy in front of her, not even recognizing her brother in her aroused state.
In this state, she devolved into an animalistic predator as she eyed her prey. She removed her soaking fingers and immediately sucked the juices off her fingers clean, then crawled on her knees towards her brother. There, she nestled between his legs. Allie surveyed her brother, who was still impossibly oblivious to the situation but wouldn't be for long. Soon, Alex felt his member launch from his pants into a warm, blissful mouth. He sighed as he laid back, enjoying this familiar sensation until he glanced down. Alex yelped, jerking away from his sister, his cock flopping out of her mouth.
"A-Allie!" he stuttered. "W-what the fuck a-are you doing?"
His sister smirked slyly as her gentle hand encircled around the base of his cock. lightly applying pressure. "I'm teaching you a lesson, you asshole," she asserted then giggled, continuing to suck her brother's pulsing cock. Her words so dominating, yet her tone was innocent and followed by her cute giggle. He let her, hand resting on her head as she swallowed him whole.
Even if someone told Linda her daughter guzzling her son's cock, she couldn't hear anything besides the blood rushing to her ears and 'cock.' Her laced panties dangled precariously on her ankle as her pussy felt the powerful vibration of the washing machine. She held onto the nearby walls and shelving as she held her unyielding breathy moans. But this wouldn't be enough. The woman popped her breast out and started pinching and rolling her taut, dime-sized nipples. But this still wouldn't be enough. She would've almost given up again if she hadn't spotted the broom.