The Harrington Main House was unusually quiet that night. Extra guards patrolled the grounds under the pale moonlight. After Clara and Sarah's kidnapping, security had been doubled. The entire estate felt like a fortress — silent, tense, and heavily guarded.
Yet inside Fin's private room, the atmosphere was anything but calm.
Marianne was pressed against the wall as Fin kissed her with raw, desperate hunger. His hands gripped her waist tightly, fingers digging into the thin silk of her nightdress. The kiss was deep, messy, and filled with frustration.
Marianne's hands rested on his chest. She wasn't exactly pushing him away, but she wasn't pulling him closer either. After a few seconds, she turned her head slightly, breaking the kiss.
"Fin…" she breathed, her voice low and uncertain. "Stop. What are you doing?"
Fin didn't answer right away. His breathing was heavy, and his eyes looked dark and unfocused — like he had reached his limit. After everything that had happened, something inside him had finally snapped.
He grabbed her shoulders and turned her around so her back was against his chest. Marianne let out a soft gasp at the sudden movement. Fin pressed himself against her from behind, one arm wrapping around her waist while his other hand gently held her throat.
His lips brushed against her ear as he spoke, his voice hoarse.
"Help me."
Marianne's body stiffened slightly. "What…?"
Fin's grip on her waist tightened. He pressed his face into her hair, his voice rough and strained.
"Help me forget everything… Just for tonight. Please."
Marianne remained still in his arms. She could feel the heat of his body against her back, the hardness pressing against her, and the desperation in his voice. A part of her knew this was wrong — terribly wrong. But another part of her didn't move.
She slowly turned her head just enough to glance at him from the corner of her eye.
"Fin…" she said softly, her voice caught between caution and something else. "You're not thinking clearly right now. This isn't right."
Fin didn't let go. Instead, he leaned down and pressed his lips against the side of her neck, kissing and gently biting her skin.
"I don't care," he muttered against her neck. "I just need to forget. Even if it's only for a few hours."
Marianne's voice came out softer than she intended. "Fin… we shouldn't be doing this."
But Fin didn't stop. His lips pressed firmly against the side of her neck, kissing and biting with growing urgency. His hand moved higher, cupping one of her heavy breasts through the silk. He gave it a firm squeeze, feeling the soft flesh spill between his fingers.
"I need this," he muttered against her skin, his voice rough and strained. "Just for tonight… I need to forget."
Marianne's breath hitched as his thumb brushed over her nipple. The silk was thin, and she could feel the heat of his palm clearly. She knew she should push him away. This was wrong — terribly wrong. But her body wasn't listening.
Fin's other hand moved lower. He grabbed the hem of her nightdress and slowly pulled it up, bunching the silk around her waist. His fingers slid between her thighs, pressing against the front of her panties. He could feel the warmth there already.
"You're wet," he whispered, almost surprised. His fingers rubbed slowly over the damp fabric. "Even now… You want this too."
Marianne's head fell back against his shoulder. A soft, involuntary moan escaped her lips as his fingers pressed more firmly against her. "Fin… ahh…"
He didn't wait any longer.
Fin turned her around to face him and pushed her back onto the large bed. Marianne fell onto the sheets, her white silk nightdress riding up to her hips, exposing her smooth thighs. Before she could say anything, Fin climbed on top of her, settling between her legs.
He grabbed the front of her nightdress and pulled it down roughly, freeing her full, heavy breasts. The cool air hit her skin, making her nipples harden instantly. Fin stared at them for a second, eyes dark with lust, before lowering his head and taking one into his mouth.
"Mmmh—!" Marianne's back arched as he sucked hard, his tongue circling her nipple while his hand squeezed and kneaded her other breast. His free hand slid down between her legs again, this time pushing her panties to the side.
Two of his fingers slid inside her without warning.
"Ahh—! Fin…!" Marianne gasped, her hands gripping his shoulders. She was already wet, and his fingers moved easily, curling inside her as he continued sucking on her breast.
Fin's mind was a mess. He knew this was wrong. He knew he was using her. But right now, he didn't care. Every thrust of his fingers, every moan that left Marianne's lips, helped drown out the images of Clara on that island.
He pulled his fingers out and quickly undid his pants, freeing his hard cock. Without giving her time to think, he grabbed her thighs, spread them wider, and positioned himself at her entrance.
Marianne looked up at him, breathing hard. Her eyes were conflicted — filled with lust, guilt, and hesitation.
"Fin…" she whispered. "If we do this…"
Fin leaned down, his face inches from hers.
"I need you right now," he said, voice low and desperate. "Just let me have you."
He pushed forward.
Marianne's mouth fell open in a silent moan as Fin slowly sank into her, stretching her inch by inch until he was buried deep inside. The feeling of him filling her made her legs tremble around his waist.
Fin let out a low groan, pressing his forehead against hers.
"Fuck… you feel so good…"
He started moving — slow at first, then faster, harder. The sound of skin slapping against skin filled the room, mixed with Marianne's soft, breathless moans and Fin's ragged breathing.
Marianne clutched the sheets tightly as Fin drove into her with rough, desperate thrusts. Her mind was a mess of conflicting emotions.
I can't stop him… We're doing this again… Ahh— Why can't I stop him?
The wet, rhythmic sound of his cock slamming into her filled the room.
Slap… slap… slap…
Every thrust forced more of her juices to leak out, making the sounds even wetter and more obscene. Her body was responding despite the guilt twisting in her chest.
Fin suddenly pulled out. Before Marianne could catch her breath, he grabbed her legs and folded them back, pinning her almost in half. This new position left her completely exposed. He looked down at her soaked pussy and smirked.
"You have a pussy that could get a man addicted," he said, voice low and rough.
Marianne's face flushed with a mix of embarrassment and anger.
"Don't talk nonsense," she snapped. "I'm your mother-in-law."
Fin let out a short, dark laugh.
"So what?" he said, gripping her thighs firmly. "Consider it your duty to satisfy your future son-in-law."
Marianne's eyes widened. "Stop this… If anyone hears—"
"I don't care," Fin cut her off.
He thrust back into her hard.
"Ahhh—!" Marianne cried out, her back arching off the bed. "You're too deep… Slow down—!"
But Fin only fucked her harder.
He gripped her thick thighs and started pounding into her with powerful, relentless strokes. The new angle allowed him to reach even deeper. Every thrust made her moan louder, her heavy breasts bouncing with the force.
"Ahh—! Fin… you're hitting too deep—!" she gasped, her voice breaking.
Fin's jaw was clenched. His mind was chaotic — images of Clara, the island, and his own helplessness kept flashing through his head. The only thing keeping him grounded was the feeling of Marianne's body wrapped tightly around him.
He suddenly flipped her onto her stomach and yanked her hips up, forcing her onto her knees. Before she could react, he slammed back into her from behind in one deep, forceful thrust.
"Fin—!" Marianne gasped, her face pressed into the sheets.
He didn't slow down.
Fin grabbed her hips and started fucking her hard and fast. The sound of skin slapping against skin echoed through the room — sharp and relentless.
Smack… smack… smack…
Marianne's moans grew louder and more broken as he pounded into her. Her breasts swayed beneath her with every thrust.
"Ahh—! You're too deep—!" she cried out.
Fin leaned forward and grabbed a fistful of her hair, pulling her head back as he kept thrusting.
"Slut," he growled against her ear. "You're trying so hard not to moan… but you're failing."
Marianne's face burned with shame, but her body kept pushing back against him. She hated how good it felt.
Fin reached down and grabbed both of her arms, pulling them behind her back and pinning them with one hand. With his other hand gripping her shoulder, he started fucking her even rougher.
Smack! Smack! Smack!
"Admit it," he growled, his voice low and demanding. "You're craving this."
Marianne's face was buried in the sheets, her body rocking violently with every thrust.
"I'm not—! Ahhh—!" she cried out, even as her hips kept moving back to meet him. "I'm only doing this because I have to…!"
Fin leaned down, his chest pressing against her back as he continued his relentless pace. His voice was dark and threatening against her ear.
"If you don't admit it…" he groaned, thrusting deep, "I'll keep fucking you until you do."
After several intense rounds on the bed, Fin's hunger still hadn't subsided. Without a word, he lifted Marianne off the bed and carried her toward the large floor-to-ceiling window that overlooked the dark gardens. The night outside was quiet, with only the faint glow of garden lights illuminating the trees and pathways.
Fin stood naked in front of the window, holding Marianne up with her thick thighs wrapped tightly around his waist. Her back was pressed against the cold glass, the chill seeping through her skin and contrasting sharply with the heat of his body. Her white silk nightdress was bunched around her waist, and her full, heavy breasts rose and fell with every ragged breath.
Fin looked at her with dark, unrestrained hunger — like a predator who had finally cornered its prey.
"So, my slutty mother-in-law…" he murmured, his voice low and rough, "shall we continue with the next round?"
Marianne's breathing was heavy and uneven. This was already their third round, and she had never expected Fin to be this wild and dominant. Her body was sore, her inner walls sensitive and aching from how roughly he had taken her earlier.
She bit her lower lip, trying to steady her voice.
"Stop… Please," she whispered, her tone softer than before. "I'm really sore… It hurts down there."
Fin didn't reply with words. Instead, he leaned in and bit her lower lip — not gently, but with enough pressure to draw a moan from her. The sound slipped out before she could stop it. Her hands tightened around his back, nails digging into his skin as she instinctively pulled him closer for a second before pushing him back.
She turned her face away, breathing hard.
"Why are you doing this…?" she asked, her voice trembling with a mix of exhaustion and confusion.
Fin looked straight into her eyes, his gaze intense and unwavering.
"I want you."
Marianne's expression twisted with conflict.
"You know this is wrong…"
Fin didn't give her a chance to continue.
Without warning, he pushed his cock back inside her in one deep, forceful thrust. Marianne's head hit the cold glass behind her with a dull thud as a sharp cry tore from her throat.
"Ahhh—!"
"Someone will see…" she gasped, her voice breaking. "Stop—!"
But Fin only thrust harder.
He gripped her thick thighs tightly and started fucking her against the window with raw intensity. Every thrust was deep and deliberate, the wet sounds of his cock sliding in and out of her filling the room. The cold glass against her ass contrasted sharply with the heat of his cock stretching her sore pussy.
Marianne's moans grew louder and more broken with every thrust. Her heavy breasts bounced with the force of his movements, and her hands clutched at his shoulders as if she didn't know whether to push him away or pull him closer.
"Fin… Ahh—! You're too rough—!" she cried out, her voice shaking.
But her body betrayed her. Even through the soreness, her walls clenched around him, and her hips twitched with every deep stroke.
Fin's breathing was heavy and ragged. He leaned in close, his forehead almost touching hers as he kept thrusting.
"Admit it," he growled against her lips. "You're enjoying this."
Marianne shook her head weakly, tears of overstimulation gathering in the corners of her eyes.
"I'm not… I'm not— Ahh—!"
Fin suddenly changed the angle, driving even deeper. Marianne's eyes widened as a broken, helpless moan escaped her lips. Her resistance finally cracked.
Her hands slid up to his neck, and instead of pushing him away, she pulled him closer. Her voice came out in a shaky, defeated whisper between moans.
"Fin… please… I can't take it anymore…"
She looked at him with glassy, tear-filled eyes, her pride finally crumbling.
"I… I'm enjoying it," she admitted breathlessly, her voice barely above a whisper. "I hate it… But I'm enjoying it. So please… Slow down~."
Fin's eyes darkened with a dangerous mix of satisfaction and hunger. He pressed her harder against the glass and began thrusting into her with renewed force, no longer holding anything back.
Marianne's head was tilted back, her silver-blonde hair sticking to her damp forehead. Her earlier resistance had completely crumbled. Her arms were wrapped tightly around his neck, and her legs were locked around his waist as she moaned without restraint.
Ahh—! Fin…! You're so deep—!" she cried out, her voice hoarse and broken.
Fin's breathing was ragged and heavy. He leaned in, his forehead resting against hers as he continued pounding into her.
"Say it again," he growled, his voice low and demanding. "Say you're enjoying this."
Marianne's pride had already shattered. Her eyes were glassy with tears and overstimulation as she looked at him.
"I'm enjoying it…" she admitted breathlessly, her voice trembling. "I hate how much I'm enjoying it… Ahh—!"
Her confession seemed to ignite something darker in Fin. He slammed into her harder, the wet sounds of their bodies meeting filling the room. The glass behind her vibrated slightly with the force of his thrusts.
Smack… smack… smack…
Marianne's moans grew louder and more desperate. She could feel him swelling inside her, his rhythm becoming more erratic. Her own body was tightening around him, the pleasure building rapidly despite the soreness.
"Fin… I'm close—!" she gasped, her nails digging into his shoulders. "I'm going to— Ahh—!"
Fin gritted his teeth, his jaw clenched as he chased his own release. He buried his face in her neck, his thrusts becoming shorter and more forceful.
"Cum for me," he growled against her skin. "Let go."
Marianne's body obeyed. " Ahhhhhhh~"
Her back arched sharply against the glass as her orgasm crashed over her. A loud, broken moan tore from her throat as her walls clenched and pulsed around him. Her thighs trembled violently around his waist, and her entire body shook with the intensity of her climax.
Feeling her tighten and spasm around him pushed Fin over the edge.
With a deep, guttural groan, he thrust into her one final time and buried himself as deep as he could. His cock pulsed hard as he came, flooding her with thick, hot spurts. He held her tightly against the window, his body shuddering as he emptied himself inside her.
For a long moment, neither of them moved. The only sounds in the room were their heavy, uneven breathing and the faint creak of the window.
Fin kept Marianne pinned against the glass, his forehead resting against her shoulder as he slowly came down from his high. His cum slowly leaked out of her, dripping down her thighs and onto the floor.
Marianne's body was limp in his arms, her breathing shaky. Her eyes were closed, and silent tears slipped down her cheeks — not from pain, but from the overwhelming mix of pleasure, guilt, and shame.
Fin finally pulled back slightly and looked at her face. His expression was unreadable — a mixture of satisfaction, exhaustion, and something darker.
He didn't say anything.
He simply leaned in and kissed her — slower this time, but still possessive — as they both stood there, pressed against the cold window in the quiet of the night.
**
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