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“Well, hello, gorgeous.”
Seokjin looks up from the coral that he’s examining, eyes widening when he finds himself face to face with a large, broad, muscular creature. He, like Seokjin, has the upper body and head of a human—Seokjin can’t help but notice just how pretty his face is, the broad line of his shoulders. Unlike Seokjin, however, this creature’s lower half is made up of eight large, bluish-black tentacles, swirling in the water around him. His eyes are dark, his hair a deep, navy blue, and he’s smirking, dimples glaring at Seokjin from either side of his mouth.
“Wh—who are you?” Seokjin says, instincts prickling at the base of his spine. He risks a glance around, then swallows hard—he’s entirely too far from the border of his family’s territory, and he can’t hear his siblings.
The creature drifts closer to him slowly, and Seokjin tenses, ready to swim off at a moment’s notice. He’s fast, he knows he’s fast, can probably outswim this creature if he has to, but—
But he’d rather not risk it. He’d rather just talk his way out of this, would rather just get away without having to flee.
“Namjoon,” the creature purrs, his words quivering through the air and sinking through Seokjin’s body, leaving every inch of him buzzing, all the way down to the tip of his pink tail. “My name is Namjoon. What’s yours, gorgeous?”
“I—I’m Seokjin.”
“Seokjin,” Namjoon echoes, tentacles swirling in the water around him. “What’s a pretty mermaid like you doing all the way out here, hm? Your kind usually doesn’t stray this far from home.” He hasn’t stopped moving closer, slowly, inching towards Seokjin through the water, and Seokjin, a beat too late, starts to drift away from him. “Oh, gorgeous, no, I’m not going to harm you. I just want a better look at that gorgeous face.”
“Wh—why, what do you--what do you want, I don’t u-understand—”
“I told you,” Namjoon says, one tentacle extending towards Seokjin slowly. It touches Seokjin’s palm, and Seokjin startles, jerking his hand away. “Shh, not gonna hurt you. Relax. I just want to see your pretty face.” His tentacle touches Seokjin’s hand again, caressing his palm gently before it curls around his wrist, lifting his hand up slightly and pulling him closer. Seokjin allows it to happen, lets himself drift closer to Namjoon in the water. “Look at you,” Namjoon whispers, another tentacle coming up, tucking under his chin and tipping his head back slightly to get a better look at him. “So pretty.”
“Why are you touching me? Why—what do you want?”
“You’re gorgeous,” Namjoon whispers. “So pretty.”
Seokjin blinks slowly, considering Namjoon for a few seconds in total silence. There’s something simmering in his gut, warm and pleasant, and it sparks when Namjoon’s tentacle curls tighter around his wrist. “You—you want to—”
“Do you know what I am, little mermaid?” Namjoon asks quietly. “I know who you are; you’re one of the pretty mermaid princes. Do you know who I am?”
“Sea witch,” Seokjin whispers, and a shiver of anticipation runs through him as he says it. “You’re—you’re the sea witch. The one that my father always warned us about.” He lets out a shaky little breath, and a small smile tugs at Namjoon’s mouth. “Please don’t kill me—”
“Why would I kill you, gorgeous?” Namjoon whispers, pulling him closer, until their bare chests are pressed together. “If you tell me to stop, pretty mermaid, I will. I’ll let you go, if that’s what you want.”
Seokjin gapes at him for a few seconds. He can feel Namjoon’s touch lingering, the phantom caress of a tentacle tingling on his jaw. He really should go, he should just flee, get out of here, as fast as possible, and go home before he gets into any more trouble than he already is.
But.
But there’s something about this creature, touching him so gently, that leaves Seokjin wanting more.
He hesitates for only a moment longer, before he brings a hand up, to touch Namjoon’s face. The sea witch smiles at him, sweet and gentle, and a few seconds later, Seokjin feels a tentacle coil around his tail, holding onto him. “Is it alright that I’m touching you, gorgeous?”
“Yes,” Seokjin says. “Yes, yeah, that’s fine. It’s totally fine.” His voice is breathless, and Namjoon’s smile widens. “What—”
“I want to touch you,” Namjoon whispers. “I want to touch you all over, I want to kiss you. Can I?”
“Yes,” Seokjin says, and Namjoon leans in, to press a soft kiss to his mouth. He brushes their lips together, and Seokjin makes a weak, helpless sound in his throat. His hands come up, landing on Namjoon’s chest, and a low, gravelly sound reverberates through the sea witch’s chest. His grip on Seokjin tightens slightly, pulling Seokjin against him, until they’re pressed tightly together, chest to chest, mouths locked together.
“Gorgeous little mermaid,” Namjoon says, voice half a growl. “Fuck, you’re beautiful, so beautiful.”
“Namjoon,” Seokjin gasps, wrapping an arm around Namjoon’s neck, gripping him tightly. “Touch me.”
“Yes,” Namjoon growls against his mouth. His tentacles flex, a second one wrapping around Seokjin’s tail and holding onto him. “Gorgeous.”
Seokjin makes another low, needy sound, and Namjoon growls into his mouth, before he moves, pulling Seokjin with him. He presses the mermaid down into the sand below them, and kisses him again, harder than before. Seokjin moans into his mouth, wrapping his other arm around Namjoon’s waist, clinging to him.
“Please,” he manages to say, voice fractured. “Please, fuck, you feel so good.”
“Fuck,” Namjoon whispers, “you sound so beautiful when you beg.” He swallows Seokjin’s answering moan with a kiss, licking easily into his mouth, as he continues to caress Seokjin with his tentacles, groping at his chest, his shoulders, with his hands. “Beautiful.”
“Namjoon,” Seokjin gasps, “I’m gonna come—”
“Sensitive,” Namjoon says softly. “Are all mermaids like this? Or is it just you?”
“I think it might just be me,” Seokjin squeaks, squirming in Namjoon’s grip. “Please, please—”
“Seokjin,” Namjoon purrs, kissing the skin beneath Seokjin’s ear. “How do I—”
“It’s—” Seokjin cuts off, then wedges a hand between them, guiding one of Namjoon’s tentacles to the slit along the widest part of his tail. Namjoon makes a low sound, then slips his tentacle inside of the slit, a growl rising in his throat, when he feels Seokjin’s cock inside the slit.
“Mermaids are so strange,” Namjoon says, then kisses Seokjin again, harder than before. “Such bizarre creatures.”
Seokjin snorts. “What do you have, then, for genitals, oh great and powerful sea witch?”
Namjoon’s answering grin is wide, shark-like. He caresses one of his own tentacles, drawing Seokjin’s attention to it. Seokjin reaches out, to touch it. It feels different from the other tentacles, more muscular, smoother, a slightly brighter hue of color to it. Seokjin swallows hard, then strokes it gently, watching intently as Namjoon shivers at the touch.
“Oh,” Seokjin breathes. “That’s how you fuck.”
“Mm,” Namjoon hums. “That’s how I fuck, and how I lay my eggs.”
Seokjin’s jaw drops. “Eggs?” he squeaks out, and Namjoon grins at him again.
“Don’t worry,” he murmurs. “I won’t lay any in you, gorgeous.”
Seokjin swallows hard, and there’s no missing the way that his cock twitches against Namjoon’s tentacles. “What if I want you to?”
Namjoon chuckles, pressing a kiss to the corner of his mouth. “Maybe one day,” he says softly. “Not today, though, gorgeous.”
Seokjin opens his mouth to say something else, but before he can, Namjoon’s tentacle curls around his cock, and gives him a long, slow stroke. Seokjin gasps, grip tightening on Namjoon’s dick-tentacle, and Namjoon groans quietly, baring his teeth against Seokjin’s jaw.
“Keep your hand there,” Namjoon purrs, and Seokjin nods his agreement. “And just. Fuck, just keep squeezing like that, good.”
Whatever Seokjin tries to say is drowned out by a choked, high-pitched moan, as Namjoon continues to stroke his cock. The rest of his tentacles are wrapped around Seokjin, squeezing and caressing him, and Seokjin shudders in his grip. “Please,” he gasps. “Please, Namjoon, close, I’m close—”
“Shh, gorgeous, relax,” Namjoon purrs into his ear. “Just come for me, okay? Can you do that?”
“Yes,” Seokjin says quickly. Namjoon hums, then continues stroking his cock, grip tightening slightly. As he does, Seokjin continues squeezing and massaging his tentacle, and before long, Namjoon goes tense in his grip. He jerks slightly against Seokjin, and a beat later, Seokjin comes as well, whole body going totally limp in Namjoon’s arms.
Namjoon makes a low, growling sound, blanketing Seokjin with his body, pressing a soft kiss to his mouth. “Beautiful,” he growls into his ear quietly, then kisses him again. “Gorgeous.”
“Mm,” Seokjin hums, running his hand slowly up and down Namjoon’s back, over his broad shoulders. “You, too.”
Namjoon chuckles quietly, then kisses his jaw as gently as possible. “Let me get you home, hm? Let me get you back to your pretty palace, beautiful prince.”
“Mmkay,” Seokjin mumbles sleepily, pulling Namjoon into a kiss as Namjoon urges him upright, tentacles still holding Seokjin against him. “You’ll… you’ll come see me again? We can do this again, maybe?”
“Of course,” Namjoon whispers quietly, then kisses him again. “You might have to come see me, your daddy isn’t my biggest fan.”
“That’s okay,” Seokjin says against his neck. “I can do that.”
“I’m looking forward to it, gorgeous.”