The Swimming Lesson
Finn Shelby x Adeline (OC)
Summary: Adeline makes a terrible mistake when she underestimates the vengeful nature of the youngest Shelby brother.
Author's Note: A lovely anon requested a dark!Finn fic. I included the John love triangle bc it added motivation. I hope you enjoy it!
Warnings: dark fic 💀, drinking, misogyny, murder
“Finn, say something,” Adeline urged her friend, the confession of a budding relationship with his brother John still hanging in the air between them.
Attempting to forget the refusal of his kiss, Finn stopped pacing along the bank of the pond as an irresistible notion came to him. “Will you go for a swim with me?” he asked.
Adeline paused, “So, you’re not upset about John?”
Finn shook his head as he proclaimed, “I don’t want to talk about that anymore. I’d like to have some fun with you instead.”
Adeline held her breath as she felt him take her hand in his, wanting to believe he was happy for her. However, something cried out within her at the rough grasp of Finn’s touch, the distant look in his eyes which had turned dark as obsidian glass. “You want to go in there?” she asked carefully, raising one eyebrow in a look of uncertainty.
“Why not? Are you afraid?” Finn taunted with a mischievous grin.
She peered down into the cold, murky water and gulped. “You know I can’t swim."
“You going to let that stop you when you have me with you?” he urged. Placing a hand to her lower back, he pushed her closer to the uninviting water.
“I suppose a quick dip couldn’t hurt,” she conceded as she removed her shoes.
“That’s my girl,” Finn praised, relishing the sound of it on his tongue. He watched with lecherous delight as she stripped her stockings down her legs, discarding them beside her hat and shawl before tentatively slipping her toes beneath the water. Modestly gathering the hem of her white dress in one hand, she tip toed forward, a pathetic squeal escaping her lips as she felt a fish skim against her calf beneath the thick green algae.
Finn went first with his back to the pond, holding her hand as she ventured into his waiting arms. He was captivated by every intake of breath and needy squeeze of her fingers against his. She was at his mercy and he relished every second of it. When her foot faltered along the slimy bottom where it sloped downward into greater depths, she cried out “Finn, I’m slipping!”
“S’alright, I’ve got you,” he replied confidently, flexing the muscles in his arms for her benefit.
“Can’t go much further,” she warned, biting her lip. The look in her eye begged for understanding, a sliver of mercy, but Finn only tugged at her wrists more insistently.
“Let’s try a lesson, shall we?” he said with a look of amusement.
“No, no, please!” her voice trilled anxiously.
“C’mon, you’re a big girl, you can do it,” he insisted, hands moving to clutch her waist and pull her into the center of the pond with him. She released a frightened cry as he did so, grappling onto his shoulders as she felt herself become weightless.
“Finn! Finn, this isn’t funny!” she wailed, realizing she could neither see nor feel the bottom to ease her fears.
“Relax,” he commanded firmly as he pried her hands from around his neck. He chuckled inwardly at the way her nails clawed at his bare back and forearms, thinking of the suggestive tales he could tell.
Without warning, he turned her onto her back in one swift movement, hushing her whimpers as her hair dipped and swirled in the water. “I taught all my nieces and nephews this way,” he informed her, patting her dampened locks down gently. His fingers slowly crept along her arms, unfurling them from her chest so they reached out from her body like a crucifix. She couldn’t say if it was the chill from the water or his hands dipping perilously close to the curve of her breasts, but she shivered beneath his touch.
To her surprise she found herself floating easily, ears submerged below the water line listening to the muffled sound of her heartbeat thumping in her chest. Finn’s face hovered above her imposingly and a nervous twitch pulled at her cheeks. She watched Finn’s mouth moving out of synch with his words she could barely hear through cotton stuffed ears. Her brow furrowed as she tried to connect the words she thought he'd said, “I loved you." They made her chest rise and fall quickly with uneven breath, disturbing her balance. Something about the slight sneer of his lip and the intensity of his gaze made her tense suddenly, muscles clenching until her middle began sinking downward precariously.
Then Finn reached a large hand beneath her lower back to support her. With his opposite hand grasping under her chin, he elevated her face toward the heavens so she might breathe evenly again and she sighed in grateful relief. Eyes fluttering against the breeze, Finn swore she batted her lashes at him in that moment. “You’re so beautiful,” he couldn’t help mumbling, his Adam’s apple bobbing in desire. Despite their proximity, he wondered if he had actually said it aloud. The moment of perfect silence stretched on as he cradled her into him adoringly, not a ripple to be seen all around them.
The peace soon shattered with the force of Adeline’s impish laughter which forced her chin from his hold. Finn’s jaw clenched as he suffered the indignity of her rejection for the second time that day. The shred of affection for her dissipated with the faint echo of her voice as it skipped over the water. His resolve returned as he became more certain than ever of his decision.
Adeline bit her lip as she noted the look of displeasure cross his face and wiggled beneath Finn’s grasp. Attempting to right herself in the water was a useless endeavor, however, as Finn kept her prostrated before him. Recapturing her cheeks with his long fingers, he pressed into her flesh slightly as he scolded, “Wait, we’re not finished." Then he queried softly, "Do you trust me?”
“I-I do,” she affirmed, not knowing how else to respond. She screwed her eyes shut in concentration before exhaling shakily, “What are you going to teach me?”
Finn smirked at her obedience, knowing she’d sink like a stone without his aid, her fate literally in his hands. Leaning over to brush his nose against the shell of her ear, he whispered, “Oh, this is a lesson you won’t forget.” He allowed himself a moment to savor the feeling of his lips pressed firmly to her temple the way he imagined he might after making love to her. He swallowed harshly as he realized that could never be. Adeline did not want him. The hours spent in her company had been a lie and he felt like a fool. With that thought, he released her to the murky depths where she belonged.
Her eyes shot open in abject fear as she felt herself falling, mouth gaping in shock as she felt his strong hands shove her toward a watery grave. The air from her lungs escaped to the surface in massive bubbles as she attempted to cry out. Arms and legs fumbling in uncoordinated panic, she resurfaced momentarily. Her hands desperately grasped for a hold, fingertips brushing Finn's ever so slightly. "Now you want me?" he taunted.
Swimming an arm's length away to watch the look of betrayal and horror on her face, he felt righteously vindicated. Closing his eyes, he listened to her jagged screams pierce the air, sending the birds from the trees in alert. Then he paddled back to the shore, barely registering her torturous fight, thrashing in the dark waters until exhaustion overtook her weakened body.
Sitting upon the muddy bank, he witnessed her final struggle as she silently slipped beneath the algea, white dress billowing above her like a cloud. The ripples left behind by her futile attempt at survival, beating against the shore in one last, quiet protest. Finn’s breathing came calmly and evenly as he thought of walking home to sit by the fire. His sopping wet clothes clung to his body in the way her perfume still hovered in cloying sweetness and he longed to be rid of the sensation.
The late sun had gone, dipping below the horizon in tranquil undulations of pink and orange. As Finn looked over the hazy water with a blank stare, a surge of pride swept through him. The powerlessness he’d felt earlier, washed away with the mocking sounds of Adeline’s laughter. As he gathered his shirt and cap, he closed his eyes to relive the sounds of the splashing and screams, trying not to forget their satisfying melody.
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