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Sebastian's lips are soft, delicate. The initial kiss is so tender that Kimi sighs into it, relaxing against the soft grass as Sebastian's hand wanders up his shirt. It feels so good, so right. It's the first kiss he's had in a long long time.
Sebastian pulls back for air, gazing down at Kimi adoringly. "You're so sweet."
Kimi blushes, his hands finding their way to rest on Sebastian's hips. "Shut up."
"Make me." Sebastian's smile is gentle and teasing, but then his expression grows serious. "Kimi, I want this to be good for the both of us. So I need to know, have you done this before?"
Kimi bites his lip, his mind thinking back to Kalle. There had been no one else after him. Kimi had gone to sea and had not manage to find anyone who made his heart flip like him, until now.
Sebastian waits expectantly, his head tilted to the side as he waits for Kimi's answer.
"There has been no one else," Kimi whispers, "after Kalle, I mean. I haven't, you know." His face goes bright red as he says the words.
"Your a virgin?" Sebastian's eyes are wide as he regards Kimi, making the other bite his lip.
"Uh yeah, yeah I am." Kimi knows he looks vulnerable right now. "But I want this, I want you."
Sebastian gives him a soft warm smile. "Then I will make it good for you, I promise."
Kimi doesn't doubt him, one little bit.
Sebastian goes back to kissing him, soft and sweet, making Kimi melt into his kisses. He knows he's safe and that Sebastian was going to take care of him.
Sebastian pulls away, moving to sit up and pull off his shirt. Kimi cannot help but stare, yes he's seen Sebastian shirtless a countless times, but he still loves looking at his body. All soft and lean and just perfect.
Sebastian gently tugs at Kimi's own shirt and Kimi allows it to be pulled off, enjoying the look of desire burning in the Mermaid's eyes. Fuck, Sebastian's gaze on him was enough to drown him all over again.
The shirt is tossed casually to the side and Sebastian kisses him again, deep and full of fire. Kimi can only just about keep up as the Mermaid unbuttons his jeans and move to slowly pull them down his legs, mindful of his ankle as they get tossed to the side like his shirt, then he wastes no time removing his underwear too.
Kimi feels vulnerable, naked under Sebastian's warm gaze in a way he hasn't been before. But Sebastian's eyes are filled with nothing but admiration for his body. It makes him feel warm.
Sebastian licks his lips and stands up, moving to remove his own shorts and kick them away. Fuck, Kimi had almost forgotten just how big Sebastian was. It's easily the biggest dick Kimi had ever seen, unnaturally big. It looked like it could tear him in half.
Kimi wanted it to.
The mermaid moves back over Kimi, claiming his lips in another sweet kiss, making Kimi moan into his mouth. Fuck, okay they were really going to do this. His heartbeat is just a thrum in his ears.
It's as he's kissing him that Kimi realises they don't have anything to use for lube here. When he moves to inform Sebastian of the fact, the mermaid merely smiles and runs his hand over his own cock, his fingers coming away coated with a sticky substance. Sebastian's cock had it's own lubricant. Interesting. Before Kimi could ask more, Sebastian goes back to kissing him.
Sebastian's lips trail from his lips and down his jaw, soft fluttering kisses that make Kimi feel like he's valued. A precious being, cherished. Loved.
He can feel Sebastian's fingers slowly moving towards his hole and he gasps a little, feeling himself tense, but Sebastian makes a soft soothing sound. "It's okay, I've got you."
It feels weird at first, the sensation of Sebastian's finger inside of him making him tense, but the mermaid presses his lips against his and makes Kimi focus on that. It makes him relax and soon enough Sebastian has two fingers inside of him and he's moving them up and down slowly. It feels good after a little while and he wiggles down on the fingers experimentally, giving a low moan at how it feels.
Sebastian continues to open him up, being thorough and careful. God, if he was feeling this good already, he could only imagine what his cock felt like.
When Sebastian pulls his fingers out, Kimi feels empty, his hole pulsing on nothing and Sebastian watches in rapt fascination. "God, you really want this huh?"
"Please." Kimi whispers, clearing his throat. "Please, I need your cock."
Sebastian watches him while lazily palming his cock and erect as it is, it looks even bigger than before. Kimi isn't sure he could take it, but he doesn't voice this. He wants it.
Kimi opens his legs wider, as if trying to entice him. Sebastian huffs a laugh but moves over Kimi again, the tip of his cock lightly brushing Kimi's hole. The mermaid gently takes Kimi's face in his hands.
"Look at me? We'll go slow, okay? We are not rushing this."
Kimi nods, his heart banging in his chest. "Please, Seb, please."
Sebastian presses the gentlest of kisses against Kimi's lips and slowly starts to slide in. Fuck, okay, this was uncomfortable. The prep was good, but not enough. It hurts, the burn making Kimi whimper softly. Fuck, okay it was too big, it was not going to fit.
Sebastian isn't all the way in when he frowns, wiggling a little. "Hmmm no, I don't think this is going to work."
"Keep going." Kimi says, hiding how much he cannot take his dick. He wants to prove he can do this." "I'm fine, it's okay. Go for it."
"Liar." Sebastian's voice is a little stern, his eyes knowing. "I am not going to do this if you're in pain. This is meant to be good for the both of us."
"Please?" Kimi begs, trying to take him deeper himself, but Sebastian doesn't let him. His eyes are like blue fire under the setting sun.
"No, stop moving. I can help you, but you've got to stay still." Sebastian's voice is soft, a caress. It's a soothing sound and it makes Kimi stop and look up at him.
With his long hair falling like a curtain over his face, Sebastian closes his eyes and to Kimi's amazement it feels like the cock inside him is changing shape. Getting smaller, more easier to be inside him. It's still bigger than a cock should be, but it's no longer painful.
Kimi gazes up at Sebastian in amazement and the fucker has the nerve to grin at him.
"We can adapt to the needs of our mates."
Mate. Kimi rather liked that word.
Sebastian huffs a laugh, like he's read Kimi's mind and he leans down to kiss him as he slowly continues entering him. The burn and stretch is just that little bit more manageable now. When Sebastian finally bottoms out Kimi has to remember to breathe. God, the feeling of being so full blows his mind.
"Okay?" Sebastian asks, gently cupping Kimi's cheek.
"Yeah, yeah." Kimi nods, trying to breathe. Fuck, he's so fucking full. Could Sebastian even move?
The mermaid seems to read his mind again as he gently lowers his forehead to his. "I'm going to move, okay? I'll go slow. I'm not going to rush this, we have all the time in the world."
Kimi nods his consent and Sebastian slowly begins to move, testing out the movement and checking Kimi's reaction.
It feels good, really good. Kimi lets out a low moan every time Sebastian's cock brushes his prostate. Every thrust of Sebastian's hips makes his toes curl and he finds himself trying to match his thrusts and take him impossibly deeper.
Sebastian smiles against Kimi's lips as delighted soft sounds slip from Kimi's mouth. He dares go a little faster and Kimi makes sounds he swears he has never heard himself make before.
It makes Sebastian keep up the fast pace, fucking into Kimi fast and deep and getting a little thrill at seeing the outline of his cock inside Kimi's stomach. Fuck, this man under him was incredible. He was going to keep him forever, so long as Kimi wanted that too.
Kimi moans and whimpers under him, his cock leaking pre cum and Sebastian casually swirls his finger around the tip as he keeps up the pace. He can tell Kimi won't last much longer, so he pays attention to his cock, wrapping his hand around it and moving it up and down. "Cum for me, Kimi. You deserve it."
Kimi cums, shouting Sebastian's name and squirting cum all over his hand and his stomach. Sebastian is impressed and he makes Kimi watch him lick off some of the cum on his hand, before he focuses on reaching his own high. His thrusts are deep and slow, making Kimi whine at how sensitive he feels, but he cannot move away. He lets Sebastian keep going, until he feels the mermaid still inside of him.
Kimi is unprepared for what happens next.
He feels Sebastian cum inside of him, but it doesn't seem to stop. The cum just seems to keep going and going, stuffing him up entirely. He swears he feels it leaking out of him as Sebastian pulls out of him, the cum dripping out of his ass.
"Sorry." Sebastian sounds sheepish as he watches the cum dribbling out of Kimi's hole. "Mermaids have a lot of cum."
Kimi doesn't mind, he feels so stuffed and deliciously used. God, Sebastian was incredible.
Sebastian lies by Kimi's side, pulling the tired Finn up against his chest and holding him tenderly.
"Look up." Sebastian whispers, his voice a soft whisper against Kimi's hair.
Kimi forces his tired eyes to open and he looks up at the sky to see it bathed in stars. He lets out a soft sound, watching the lights twinkling in the sky.
"Beautiful, right?" Sebastian asks.
Kimi looks over at him to see he's looking at him, not at the stars. It makes him feel warm. "Yeah."
Sebastian smiles softly then leans over to kiss him, soft and sweet.
Kimi finally knows what love feels like.
He falls asleep content and happy in Sebastian's arms, knowing when he wakes up in the morning he will be sore and uncomfortable. But that would be okay, because Sebastian would take care of him.
He will keep Sebastian forever. He doesn't know how he will accomplish that, but he will.