Chapter 1: Taken by the Tide
The cove breathed in the dark, a wet, salt-black gasp. Moonlight didn’t so much illuminate the space as it did get swallowed by it, leaving only slick suggestions of basalt walls and the faint, ghostly blue glow from the water below. The air was thick, choked with the rot-sweet smell of kelp and the sharper, warmer scent of something alive.
Ethan Hayes crouched on a rock, his fingers numb from the chill spray. His waterproof tablet was a useless rectangle of light in his hand, its sensors picking up nothing but anomalous bio-luminescence and contradictory thermal readings. “Just a few more minutes,” he muttered to himself, his voice lost under the sigh of the tide filling the cavern. He was a scientist. He dealt in data, in observable phenomena. This place, though… it felt like a phenomenon that was observing him.
A ripple cut the water’s glowing skin, not from the cave mouth, but from the profound blackness at its rear.
Ethan froze, tablet forgotten. His eyes strained. The ripple widened, and then a shape broke the surface with a silence that was more disturbing than any splash.
It was a man. At least from the waist up.
The man—creature—floated, watching him. Turquoise scales shimmered across his chest and down the powerful, serpentine length of him, catching the eerie blue light and fracturing it. Long, black hair streaked with silver clung to bare shoulders. His eyes were the piercing, impossible green of shallow tropical seas, and they held Ethan with an unnerving, complete focus.
“You’re alone.” The voice was low, a vibration that seemed to come from the water itself, wrapping around the rock Ethan stood on.
Ethan’s heart hammered against his ribs. He should run. He should document. He could do neither. “What are you?” The question was a breath, stupid and essential.
A slow, predatory smile touched the merman’s lips. “I am Kai. And you’ve been watching my home for weeks, little scientist. Leaving your little toys in the water. Listening.” He began to glide forward, his tail weaving a silent, powerful pattern behind him. “Isn’t it polite to introduce yourself?”
“Ethan.” The name fell out of him. He inched back, his boot scraping on the wet stone. “I’m just… research. I didn’t mean to trespass.”
“Trespass,” Kai repeated, as if tasting the word. He was closer now, at the rock’s edge. Ethan could see the details: the subtle gill slits fluttering at his neck, the corded muscle of his arms, the sharp cut of his jaw. “A human concept. The ocean takes what it wants. It doesn’t ask.” His eyes trailed down Ethan’s body, over his rain jacket and the sturdy trousers. “You look strong. You taste like curiosity and loneliness. A potent mix.”
Before Ethan could process the words, a webbed hand shot out of the water, fast as an eel strike, and locked around his ankle. The grip was iron, cold and unyielding.
“Wait—!”
Ethan’s protest was cut short as he was yanked off his feet. The world upended. Cold, glowing water rushed up to meet him, swallowing his gasp. He flailed, disoriented, bubbles streaming from his lips. Then strong hands were on him, turning him, pulling him against a solid, scaled chest.
They broke the surface together in the deeper pool at the cave’s center. Ethan coughed, clinging instinctively to Kai’s shoulders, his fingers slipping on smooth skin and harder scale.
“See?” Kai murmured, his mouth an inch from Ethan’s ear. His breath was warm. “The ocean takes.”
“Let me go,” Ethan choked out, but it was weak, muffled against Kai’s neck. The fear was there, sharp and bright, but under it, a traitorous current of thrill. This was impossibility made flesh.
Kai’s laugh was a dark rumble. One hand splayed against the small of Ethan’s back, holding him tight. The other came up and cupped his jaw, forcing his head back. Those green eyes bored into him. “No.”
He kissed him.
It wasn’t gentle. It was conquest. Kai’s mouth was demanding, salty, and tasted of deep, secret places. His tongue pushed past Ethan’s lips, claiming, exploring. Ethan stiffened, then a low moan vibrated in his own throat. His brain screamed danger, but his body, starved and intrigued, melted. He kissed back, his hands tangling in that wild, wet hair.
Kai made a sound of approval, a greedy growl. His hands moved from Ethan’s jaw to the zipper of his rain jacket. He tore it down, the sound obscenely loud in the cave. The soaked garment was pushed roughly from Ethan’s shoulders. His t-shirt followed, ripped at the collar and dragged over his head.
“Fuck,” Ethan gasped as the cold air hit his skin, immediately followed by the heat of Kai’s body.
“Yes,” Kai hissed. His mouth left Ethan’s to trail down his throat, biting a path to his collarbone. His hands roamed Ethan’s chest, pinching his nipples, mapping the muscles of his abdomen with a possessiveness that left Ethan shuddering. “You are for that. For this.”
Ethan’s own hands were exploring the strange, beautiful territory of Kai’s body—the smooth transition from warm skin to cooler, ridged scale at his hips, the powerful coil of his tail that wrapped around Ethan’s legs, holding him effortlessly afloat. He was hard, his cock straining against his wet pants, and the friction of being pinned against Kai’s lower stomach was maddening.
Kai seemed to know. His hand slid between them, popping the button of Ethan’s trousers, shoving them and his boxers down in one rough push. Ethan’s cock sprang free, and Kai wrapped his long, clever fingers around it.
“Oh, God,” Ethan cried out, his head falling back. The touch was electric, shocking.
“Not God,” Kai whispered, pumping him slowly, his thumb smearing the bead of pre-come over the head. “Just me.”
He kissed Ethan again, swallowing his whimpers, as his hand worked him with a ruthless, perfect rhythm. Ethan thrust into the fist, his hips moving on their own, every scientific thought burned away by raw sensation. This was being studied, taken apart, and he was letting it happen.
“I want to feel you,” Kai breathed against his mouth. “All of you.”
In a fluid motion, he spun Ethan around, pulling his back flush against his chest. One arm banded across Ethan’s chest, holding him. The other hand guided Ethan’s cock, slick now with seawater and his own arousal, to a place just below where his scales began. Ethan felt a warmth, a yielding slit he hadn’t seen.
“What…?” he panted.
“What you have. Where you need to be.” Kai’s voice was guttural with need. He didn’t ask. He pushed Ethan’s hips forward.
Ethan’s tip pressed against a hot, tight ring of muscle. It resisted for a second, then gave way, and he was sheathing himself in a blistering, clutching heat.
He shouted, the sound echoing off the cavern walls. It was overwhelming—the tightness, the alien intimacy, the sheer wrongness and perfection of it. Kai was thick and huge inside him, stretching him open in a way that burned and filled him utterly.
“Move,” Kai commanded, his teeth on Ethan’s shoulder.
Ethan did. He rocked back, driving himself deeper onto Kai’s length, then forward, fucking into that slick, hot channel. Kai met him thrust for thrust, his tail providing a powerful, undulating counter-rhythm. The water churned around them, slapping against the rocks.
Kai’s hand found Ethan’s cock again, stroking him in time with their pounding rhythm. Pleasure coiled, tight and desperate, in Ethan’s gut. It was a frantic, filthy, animal coupling. Sounds spilled from him—grunts, sobs, curses. “Fuck… Kai… right there, fuck, don’t stop…”
“Mine,” Kai snarled, his pace becoming punishing, brutal. His arm tightened like a vice around Ethan’s ribs. “You came to my water. You are mine now.”
The coil snapped. Ethan came with a broken cry, stripes of white painting the dark water, his body seizing around Kai’s driving cock. The convulsions of his climax seemed to trigger Kai’s own. The merman buried himself to the hilt, a raw, sharp shout tearing from his throat as he emptied himself inside Ethan in hot, pulsing jets.
For a long moment, they hung there in the water, panting, tangled. The glow around them seemed brighter. Ethan was boneless, utterly spent, his mind a blank static.
Slowly, gently, Kai withdrew. He turned Ethan to face him, his expression unreadable. He leaned in and licked a stripe up Ethan’s throat, cleaning a spot he’d bitten raw.
“You’ll come back,” Kai stated, no question in his tone.
Before Ethan could form a word, a powerful wave, generated by a swift lash of Kai’s tail, pushed him toward the rock ledge. He scrambled onto it, cold and suddenly empty, his clothes soaked and ruined beside him.
He turned, chest heaving.
The water was settling. The glowing blue was fading. Kai was gone, as if he’d never been.
Only the deep, throbbing ache in his body, the taste of salt and sex on his lips, and the livid, stinging bite mark on his shoulder said otherwise. The sea had taken what it wanted. And Ethan, kneeling alone on the dark rock, knew with a chilling certainty that it would come back for more.