Chapter Text
“Ivo…” Stone moaned, his head thrown back to reveal the glittering silver chain around his inky neck. Ivo couldn’t stand it any longer as he dipped his head down and kissed the skin bared to him. He was expecting the pitch black skin around Stone’s neck to feel different from the rest of his body, but this was not the case. However, he did notice how Stone melted into his touch.
The smaller Mer was boneless beneath him as Ivo let his hands explore Stone’s body. His fingers caressed the scars scattered across his body, the raised skin telling stories Ivo desperately wanted to learn and memorize. Each soft touch had Stone whining with need as his own hands came up to clutch at Ivo’s biceps. His lower half thrusted up against Ivo, something poking him.
Cheeks suddenly burning, Ivo pulled back slightly to glanced down.
Ivo was one of the smartest—if not the smartest—Mers in the ocean. Although, that didn’t mean much when he had no experience in mating. At the moment, Stone didn’t seem to mind his hesitancy, in fact the shark was trilling in satisfaction as Ivo continued to map out his body.
“Need—” Stone cut himself off as he arched his back, his slit below his waistline beginning to open up. “Need you, Ivo.”
Stone’s keening sent shivers up Ivo’s spine as his eyes zeroed in on his slit. Nothing ventured, nothing gained.
Keeping his touch gentle, Ivo rubbed around Stone’s slit as he licked his lips in anticipation. He only knew his own biology and was extremely curious to see Stone’s. He wasn’t disappointed as Stone’s slit opened further, his cock finally poking out.
Only for Ivo to blink.
“You…”
“Hmm?” Stone was too lost in his own pleasure to notice Ivo’s dilemma.
Two, identical cocks slid out of Stone’s slit, both hard and aching as Stone thrust up, wanting Ivo to touch him. Curious, Ivo ran one finger up the bottom cock, his eyes flicking between Stone’s face and his latest discovery.
Stone’s reaction was instant as his body jerked and his jaw clenched painfully as he whimpered. His hand shot out to grip the back of Ivo’s head, pulling him into a heated kiss. Ivo let out a surprised noise as he felt Stone lick at his lips, asking for permission. He didn’t hesitate to open his mouth.
It was second nature for them to mind each other’s teeth. Ivo didn’t waste any time thrusting his tongue into Stone’s mouth, treasuring the moans he swallowed down. He ran his tongue over teeth that had once tried to take a chunk out of his tail, but he trusted Stone completely not to hurt him, even now. Strong arms wrapped around his shoulders, Stone pressing his body flush against Ivo’s, his cocks rubbing at Ivo’s belly.
Thrusting his tongue down Stone’s throat, Ivo reached a hand between them and fully grasped both of Stone’s cocks in one hand.
“Fuck! Please, Ivo!” Stone whimpered, his teeth nipping at Ivo’s lips. Tasting blood, Ivo growled. He could feel his own cock pushing out of his slit, wanting to be touched.
“What do you want?” Ivo kissed along Stone’s jaw, his lips tingling as he did so. His hand began pumping Stone’s cocks, his thumb running between them. Below him, the smaller Mer squirmed harshly at the stimulation.
“I—!”
Stone shook his head, too distracted as Ivo sucked a bruise behind his ear. Pulling back, he smirked at the mark. Just another way for everyone to know exactly who Stone belonged to.
“I can’t hear you,” Ivo crooned. His hand sped up as his wrist twisted and his thumb passed over one of the heads. His other hand grabbed Stone’s hip to keep the other from moving too much as he gleefully tormented the other with pleasure. “How am I supposed to satisfy my new mate if you don’t tell me what you want, Stone?”
Watery eyes silently pleaded up at him as Stone tried to thrust up in Ivo’s grip, but was unsuccessful. Stone might be faster, but what Ivo lacked in speed, he made up for in strength. His mate wasn’t going anywhere anytime soon.
“Please, I need you!”
“Need me to do what?”
“Need you inside me!” Stone cried out, his hips working faster as a tear escaped and mixed into the water around them.
“Good boy,” Ivo purred.
Releasing his hold on Stone’s cocks, Ivo brought two fingers towards his own slit and began scissoring it open. It was rare for him to pleasure himself, the feeling foreign as he shivered in anticipation. He only had his hand in the past, but now, he had his beautiful mate begging for him.
Ivo hissed as his fingers brushed against his own cock, the tentacle like appendage nearly having a mind of its own as he opened his slit further. As it slid out, he couldn’t help but stare down in fascination as his cock instinctively began reaching out towards Stone’s cocks. Thrusting his hips, Ivo screwed his eyes closed as his cock slithered between Stone’s.
“Please, please, please!” Stone chanted, arms shaking as his eyes rolled into the back of his head.
Struggling to hold still, Ivo forced his eyes open as he took the scene in.
His cock was tapered at the end, only as wide as his finger, but as it grew closer to the base, the thicker it became until it was as thick as his wrist. The tip was currently flicking at the slit of one of Stone’s cocks, making the shark mewl in desperation. It dwarfed the twin cocks, wrapping around them fully and teasingly them mercilessly.
“Ivo!”
“Patience, little shark,” Ivo grunted as he took ahold of his cock. It curled slightly around his own fingers as the natural slick it produced from its glands made the glide heavenly. He barely had to think as he guided the tip below Stone’s cocks, into his slit. Stone’s body easily opened up for him as Stone clutched at him, tucking his face into Ivo’s shoulder. “All right?”
“Put it in,” Stone begged, body shaking.
Who was Ivo to deny him?
Releasing his cock, it instantly slithered inside Stone, not stopping until their hips were pressed tightly together. Claws raked down Ivo’s back, breaking skin, as Stone’s slit was pushed wider than ever, the shark shouting as his body stiffened. Something hot shot against Ivo’s belly as he held Stone close, watching his expression for any hint of pain. However, all he saw was absolute ecstasy as Stone’s mouth hung open and his eyes slipped shut. A full body shiver had him curling closer to Ivo.
“I’ve got you,” Ivo rubbed a hand down Stone’s back, ignoring the pain and scent of blood coming from his own. “Do you want me to stop?”
“Don’t,” Stone mumble weakly into his shoulder. “Cum inside me. Please.”
Ivo moaned at his words. How could he not fulfill that request?
He kept his thrusts shallow as he shoved against Stone, the shark whimpering as his cocks twitched in tandem at the overstimulation. Ivo felt pinpricks as Stone began mouthing at his chest and groped at Ivo’s stomach. The shark was nearly kneading his stomach as he began sucking his own marks across Ivo’s chest.
“No biting,” Ivo huffed. “I already have a scar on my tail from your teeth.”
He felt more than heard Stone’s chuckle as he ghosted his teeth over Ivo’s nipple, causing him to jerk and thrust much deeper than he meant to. Ivo could feel his cock writhing inside of Stone, the Mer’s walls blistering hot as his body sucked Ivo further inside.
“So good. So good for me, Stone.”
The shark trilled at the praise, his cocks filling once more.
“Harder, Ivo. Fill me!”
Snarling, Ivo didn’t need to be told twice. He grabbed Stone’s arms in a harsh grip as he slammed the smaller Mer against the seaweed bed, a series of excited trills egging him on. Ivo wasn’t gentle as he thrusted deep into Stone, feeling the other clench around him eagerly. His cock was striking deep into Stone, looking for the right place to lay his seed.
“Close—!”
“Please, Ivo!”
It was instinct that lead Ivo to lean forward and sink his teeth into Stone’s shoulder. The shark let out a howl as he jerked in Ivo’s grasp, but couldn’t break free from where they were connected, Ivo’s jaws, and his grip on the smaller Mer. Stone’s arms clawed uselessly at the seaweed beneath them as he struggled against the onslaught of pleasure flowing through him.
Ivo was lost to Stone’s actions as his cock pumped cum deep inside Stone, his mouth filling with the metallic taste of the shark’s blood. His vision had gone black, but gradually came back as he blinked and realized he could see the silver chain he had wrapped around Stone’s throat not so long ago.
His jaw almost refused to unlock as he tried to gently pry his teeth out of Stone’s flesh. For his part, Stone flinched, but didn’t say anything as Ivo pulled away. Underneath him, Stone blinked at him lazily, a content smile on his lips. Without thinking, Ivo leaned down and captured them in a languid kiss. Fingers ghosted along Ivo’s back until they brushed against one of his still bleeding scratches.
“Do you need to keep drawing my blood?” Ivo huffed as he pulled back from the kiss.
“I think we’re even now,” Stone rolled his bitten shoulder with a small smirk. Shaking his head, Ivo grunted as he gathered his arms below himself and pushed his body away from Stone’s. His cock slid free of Stone, both their cocks retracting slowly into their slits. However, as Ivo watched, he felt a thrill go through his body as he watched cum trickle out of Stone’s slit.
Eventually, though, his eyes were once more drawn to the blue-green glow coming from Stone’s belly. With a wince of pain, Ivo settled down next to Stone, not surprised in the least as the shark laid on top of him, his arms wrapping around Ivo’s belly as he nuzzled into his chest.
“Thank you,” Stone sighed.
“For what?”
“Taking me as your mate. Not many would want a shark for a mate.”
“Yes, well. I doubt anybody would want me as a mate either.”
“Their loss, my gain,” Stone smiled wickedly. Ivo matched his expression as he wrapped his arms loosely around the shark.
“And what do you have planned now that we are mates?”
Perhaps Ivo shouldn’t have said anything as Stone excitedly sat up, his eyes lighting up.
“Children?”
Ivo’s eyes widened.
“You want a calf!?” He choked out.
“Why not?” Stone laid back down on top of Ivo and rested his chin on top of his crossed arms. “Just imagine what our offspring would be. They would have your intelligence and my killer instincts. They would be unstoppable. I bet they could take down those large boats you are afraid of.”
Ivo flicked Stone’s ear, making the shark pout.
“I am not afraid,” he rolled his eyes. “I don’t see a need to take them down at the moment. When we have the right tools, we will attack, but not a moment sooner you idiotic shark.”
Stone continued to pout, making Ivo sigh.
“Maybe you’re right about offspring—”
“You’d be willing?” Stone perked up immediately.
“I suppose…”
“Then what are we waiting for?”
Before Ivo could protest, Stone’s fingers were already rubbing at Ivo’s slit again. Throwing his head back, Ivo’s mind went blissfully blank before he could question what exactly he had gotten himself when he took Stone as his mate.