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.
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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.