66. House of Thorne: Sterling

Trigger Warnings: Adultery/Infidelity, breach of trust, rough sexual play, choking, spanking, anal play, and explicit language.

Sterling

    The heavy, soundproofed doors of my study were the only thing keeping the world out-and my secrets in. Outside, the estate was a monument to old money and respectability. Inside, the air was thick with the scent of expensive bourbon, expensive cigars, and the cheap, thrilling musk of a woman who wasn't my wife.

Beatrice, my wife's younger sister, stood by the floor-to-ceiling bookshelves, her fingers tracing the spines of leather-bound classics. She was wearing a dress that was a direct insult to Bianca-shorter, tighter, and cut so low it was practically an invitation for a lawsuit. She knew exactly what she was doing. She'd been doing it for years.

"Bianca thinks we're discussing the merger, Sterling," Beatrice purred, her voice a low, melodic taunt as she turned to face me. "She's probably in the gallery, being the perfect, boring wife, while you're in here... wanting to ruin her bloodline."

I sat in my leather executive chair, a glass of scotch in my hand, watching her. My heart was a steady, rhythmic thrum of anticipation. Bianca was beautiful, but she was predictable. Beatrice was a wildfire.

"You have a very foul mouth for someone who grew up in the same nursery as her," I grunted, my gaze raking over the swell of her tits.

"Maybe that's why I'm better," Beatrice countered, walking toward me with a sway of her hips that made my cock give a violent, painful throb against my zipper. "I know all her secrets. And I know exactly how much you crave the one thing she won't give you. Total, filthy submission."

I almost chuckled. If only she knew.

She didn't wait for an answer. She dropped to her knees between my legs. She didn't reach for my zipper immediately. Instead, she looked up at me, her eyes dark and predatory.

"Watch me," she commanded.

She reached behind her and unzipped her dress, letting it fall to her waist. She wasn't wearing a bra. Her tits were heavy, tipped with dark, hard nipples that seemed to reach for me. She began to touch herself, her fingers circling her own peaks, pinching them until she let out a soft, hissed breath. With her other hand, she reached under her skirt, her fingers disappearing into the lace of her panties.

"Look at how wet I am for you, Sterling," she whispered, her eyes never leaving mine. "I'm soaking just thinking about you sliding inside me while my sister is just down the hall."

I set my glass down, my hand moving to my own crotch. I began to stroke myself through my trousers, the friction almost unbearable as I watched her work herself into a frenzy. She was drooling slightly, her tongue darting out to lick her lips as she increased the pace of her fingers.

"You like fucking your wife's sister's pussy, don't you?" she taunted, her voice a broken rasp. "You like that I'm younger, tighter, and so much dirtier than she could ever be."

"Shut up and use that mouth, Beatrice," I growled.

She obeyed, unzipping me with a frantic, desperate energy. My cock sprang free-thick, dark, and already leaking. She didn't take it all at once. She teased me, her tongue tracing the vein along the underside, her hot breath fanning against the sensitive skin. Then, she took the head into her mouth, her eyes locked on mine as she began to suck.

She was relentless. She used her hands to massage my balls while her throat opened up to take every inch of me. She was messy, letting the saliva and drool run down the shaft, coating me in a slick, shimmering layer of her greed. I reached down and grabbed her hair, forcing her deeper, my fingers tangling in the dark waves as I dictated the rhythm.

"Yes... choke on it, you little slut," I hissed, my head falling back against the leather.

After what felt like an eternity of exquisite torture, I pulled her up. I didn't want to finish in her mouth. I wanted to be buried in the heat of her betrayal. I shoved the papers off the desk, the glass of scotch shattering on the floor, ignored. I slammed her down onto the mahogany, her legs flying wide.

I didn't waste time with her panties; I ripped them aside, the lace shredding in my hands. Her pussy was a dark, glistening invitation, the scent of her arousal filling the small space.

"On your back," I commanded, my voice a primal rasp.

I entered her with a single, violent thrust that bottomed out against her womb. Beatrice let out a long, shattered scream-one that would have brought the whole house running if the room weren't soundproof. I didn't care. I wanted to break her.

I began to hammer into her, a slow, punishing missionary rhythm that ground my pelvis against hers. I wasn't gentle. Every slam of my hips was a reminder of the sin we were committing, a thrill that fueled my stamina.

"You're so much better than her," I panted, my hand sliding down to her throat, squeezing just enough to make her pupils dilate. "You're a goddamn animal, Beatrice."

"I'm your whore, Sterling!" she screamed, her hands clawing at my back. "Treat me like it! Breed your wife's sister!"

I flipped her over, forcing her into a missionary position with her legs hooked over my shoulders. I reached down with my free hand, my thumb finding the tight, puckered heat of her ass hole. I didn't ask; I shoved it deep inside her while I continued to pound her pussy.

The double sensation made her toss her head back, her eyes rolling into her head. She began to moan, a low, guttural sound of total, unadulterated pleasure. I increased the pace, my thrusts becoming shorter and more frantic.

"I'm going to fill you, Beatrice!" I roared, the tension in my lower belly reaching a breaking point. "I'm going to put my seed so deep inside you that you'll be carrying me for a week!"

"Do it! Please, Sterling! Give it to me! I want your cum! I want to feel it hitting my womb!"

She reached for me, pulling me forward so she could ride me. She sat on my lap, her legs wrapped around my waist, her heavy tits bouncing with every frantic movement. I watched them, the way the light caught the sweat on her skin, the way she looked like a creature of pure, unbridled lust.

"I'm close!" she warned, her internal muscles clamping around my cock in a series of violent, rhythmic spasms. "I'm coming, Sterling! Oh god, I'm coming!"

She hit her peak, her body racking with tremors that nearly pulled me off the desk. I followed a heartbeat later.

"I'm coming now! Beg for it, Beatrice! Tell me you want my hot cum inside your pussy!" I shouted, my body tensing for the final explosion.

"Give it to me! Please! Fill me! Breed me, Sterling!"

I erupted. A hot, thick stream of cum hit the back of her womb, my body shaking with the force of the release. I fired again and again, emptying every drop of my frustration and my desire into her. She sobbed, her head falling onto my shoulder, her body heavy and sated.

We stayed there for a long time, the only sound the ticking of the clock on the mantle and our ragged breathing. I stayed buried inside her, the warmth of our joined bodies the only thing that felt real.

Finally, I pulled out with a wet, squelching sound. Beatrice scrambled to pull her dress up, her face flushed, her hair a chaotic mess. She looked at the desk-covered in her juices and my seed-and she smiled. It was a dark, triumphant expression.

"Same time tomorrow, Sterling?" she whispered, her voice returning to its cool, taunting tone.

"Get out," I grunted, tucking myself back in and reaching for a fresh glass of scotch.

As she slipped out of the soundproof room, she had no idea that just down the hall, her sister was being marked in the exact same way by the man hired to protect her. In the house of Thorne, the walls were thick, but the secrets were even thicker, and the merger was the last thing on anyone's mind.