Viviane straddled him right after swallowing him down, her body still flushed, her thighs sticky from her own juices.
She didn't wait nor did she need permission. Her eyes were wild, pupils blown wide with lust as she lined herself up over his still-hard cock, the tip twitching and wet from her mouth.
Seamus was still catching his breath when she rubbed his tip against her folds, coating him in how wet she already was.
"Viviane, fuck, you're really horny now, don't you?" he rasped.
Never she been this excited before and it makes his heart beat fast. That girl always has a way to surprise him.
She chuckled low, teasing his cockhead against her entrance. "Stt, don't call me by my name tonight, stepbrother. Call me sister, yeah?"
Seamus could only laugh and nod.
"And yeah, I'm really horny now, I was wet the second you said my name."
Then, without warning, she slammed down on him. Her pussy perfectly hugged his thick cock as she moaned in pleasure.
"Ngghhh~ My stepbrother's cock is amazing~"
Seamus choked out a hiss as her tight, hot cunt swallowed him whole. Her walls clamped around him, squeezing like velvet vice.
The sudden pressure made his hips jerk up, instinctively thrusting deeper, and she gasped, a sharp, needy sound that turned into a throaty laugh.
"Ohhh~ Fuck, you're still so hard," she hissed, rolling her hips slowly as she adjusted to his size. "I should milk you again. See how long you last."
She started moving, grinding in a slow, tight circle, her hands on his chest for balance. Every shift made her walls flutter around him, dragging him deeper.
Her pussy was soaked, making every movement slick and noisy. It was messy, wet, raw, and perfect.
Seamus gritted his teeth, his hands flying to her hips. "You're insane, sister," he groaned. "You just made me cum, and now you're riding me like you want another one?"
Viviane leaned forward, her tits brushing his face as she whispered, "I want three."
Then she started to ride him properly, bouncing on his cock, up and down, fast and hungry. Every thrust made her moan, made her thighs slap against his hips, her hands gripping his shoulders for leverage.
"AHHH~ BROTHERR~ YOUR COCK TWITCHING INSIDE MEEHHH~"
Viviane's moan started to be higher, as her movement became faster. His cock hitting her perfect spot, making her shudder in need.
"Damn, Sister... Your pussy... Is trying to kill me, huh?" Seamus groaned, half jokingly as his eyes started to unfocus becasue of the pleasure.
The way she moved, frantic and unhinged was almost too much. She wasn't trying to be pretty about it. She was trying to break him.
"OHH!!! NGGHHH~ I'M BROTHER! I WILL DESTROY YOUU!!!" She tilted her head.
Seamus watched her through half-lidded eyes, her tits bouncing with every thrust, her hair clinging to her sweaty skin. Her lips were parted, breath ragged, eyes locked on his like she wanted to swallow him whole.
"Ahhh, Viviane-"
She cut him off with a kiss, wet, deep, tongue curling into his mouth as she slammed down on him harder. He could feel how close she was, the way her pussy clenched tighter with every grind.
"Ngghh~ You feel that?" she gasped between kisses. "That's me about to cum on your cock."
He could only groan in response, hips bucking up into her like his body had taken over.
"AHHHH!!! OHHH!!! I'M CUMMINGGG!!!"
Viviane threw her head back and let out a broken moan. Her whole body tensed as she came, pussy spasming around him, soaking his cock even more. Her nails dug into his chest, leaving red marks as she rode through it, not slowing down.
"Fuck—fuck, Sister!" Seamus couldn't hold it. He felt himself rising again, that second climax building fast, violent.
She looked down, smirking through her panting. "Ahhh!! Ohhh!!! G-go ahead.... Cum in me, Brother. I'm not pulling out tonight, I want your cum filling my womb!!!"
That was it.
He groaned loudly, hips slamming up into her as he came again, thick and hot, spilling deep inside her. Viviane moaned, her body shaking on top of him, clenching around every drop like she was trying to keep it inside.
She collapsed forward, breathing hard, sweat sticking their bodies together. For a long second, neither of them spoke. Just ragged breath and pounding hearts.
Viviane leaned down, lips brushing against Seamus's ear, her voice dark and playful.
"I'm not done yet."
"Wow, really? You're all out tonight, huh, Stepsister?" Seamus smirked, looking up at her body on top of him.
His cock was still buried inside her, and his cum kept dripping from her soaked pussy.
"Mmm… Because today is a special day," she said, slowly sitting up.
Moonlight poured in from the window, bathing her pale, glistening body. Her golden eyes looked dim—like something long dead—but still gleamed with hunger as they locked on him. Her smile was wide, crooked, and eerie.
Something about her was… different tonight. He couldn't explain it. Her skin was colder now. Colder than before.
Then she whispered, her voice soft but final.
"I'll tell you my secret, brother… and after that, you'll be mine. Forever."
***
Andrew was beyond thrilled for his wedding night with the hottest woman he'd ever laid eyes on. Rich, sexy, and clearly into him? Hell yeah.
"Damn, can't believe I scored an unlimited bank account! Let's go to Vegas after this," he muttered to himself, eyeing the room's decorations.
His gaze stopped at a painting on the wall—an elegant nude woman with long blonde hair coiled around a serpent, smiling like she knew something he didn't.
It was Lilith by John Collier, not that someone like Andrew had any clue.
All he could think was: How much could I sell this thing for? Would Isolde's money run out if he just kept gambling?
Too bad he didn't realize he was already gambling with his life.
The bathroom door creaked open. Isolde stepped out in a sheer black dress, her curves visible through the fabric, every step slow and deliberate.
Andrew's eyes lit up. "Damn, you're mad hot, darling! Let's have a lot of funsies tonight!"
He reached for her, but before he could even touch her, Isolde placed a single finger against his temple.
He collapsed instantly.
Isolde stared down at him with cool disinterest. "Hm… It's a shame you don't share that delicious blood like your boy," she murmured, tilting her head like she was studying a dying insect.
"But it's alright. As long as you're around, Seamus will stay trapped with us."
She smirked.
"At least you're useful."
With that, she turned and walked out of the room, the hem of her dress whispering over the wooden floor.
"I wonder what those two are doing now…"