The next day couldn't come faster, the human practically woke up aroused, he almost even dreamed of it. The thoughts of them grinding last night was clear in his mind. So with that feeling he left the house right after eating something and washing himself.

He wants to be clean for the other. Even though he was literally going through the sea and being all salty again, not that Jungkook mind that, he literally lived in the ocean. But still.

So like the flash the human had made his way to the beach with his car and pushed all his stuff in the hole in the rocks before jumping into the waves in his swim shorts. This time he wasn't going there to relief his heart, right now he was going there to be intimate with his favorite being, a being from the waters, someone he loves very much.

He hadn't even entered the cave yet when he could already feel a slipper tail brush past him, he knew it was Jungkook, he was gently grabbed by the hand and pulled into the cave where he got back to the surface. a big smile on his face when he saw Jungkook circling around him like he was a prey.

"welcome back my human, i've been waiting eagerly for you"

"me too"

"you kept me waiting longer than i wanted" the siren said and closed him in, his face inches apart. "but you're forgiven" he chuckled and gave the human a kiss.

"how about we pick up where we left off...'' Taehyung said while he traced a line over the siren's face to his lower body. "i've been thinking of you ever since you left, i want you so bad"

"You are a brave prey.... be careful..." Jungkook said with a grin and he leaned down to Taehyung's ear. "i bite"

The human chuckled, feeling butterflies all over him. Jungkook made him feel such intense feelings he never thought to feel. And he absolutely loved it. "Hmm, I'm all yours." He said and untied his swim shorts, watching how the siren's eyes darkened in lust and the creature helped him undress. pulling down the swim shorts.

"Ohhh, excited are we?" the siren said and traced his finger over Taehyung's hard length.

"fuck, ah. don't tease like that if you're gonna do something, "Taehyung said, feeling shivers go through him.

"Fine, fine, let me have a taste then" the siren said and lowered himself more in the water, his lips softly brushing over the tip before giving it a lick.

"oh my, i never thought i would have a siren suck me off" taehyung said while he watched the siren suck his tip into his mouth and lowering his head down over his length. He moaned softly and laid on his back, letting the creature do his work. His snakey tongue rubbing and twirling around his shaft was so good. Jungkook really made sure to not leave any spot untouched.

All this pleasure made him needy so he moved his hand down to his ass and started rubbing his entrance, slipping one wet finger inside. better prepare himself before the real thing.

Him pleasuring himself didn't go unnoticed by the siren who grabbed Taehyung's wrist and pulled the finger out, replacing it with two of his own, which made Taehyung gasp at the sudden stretch. But jungkook's fingers felt better, his siren skin had a slimy layer that made it easier for them to be pushed inside.

"shit, that hurts a little-ah ah, oh my '' Taehyung moaned and fisted Jungkook's feelings of pleasure from his member mixing with the stretching pain in his ass. It was strangely pleasurable. "fuck fuck, i dont want to cum yet" he said and jungkook pulled away with a smirk, licking his lips satisfied.

"you're even more delicious than I thought. it was hard not to eat you up completely"

"you're so hot," Taehyung said and let Jungkook work him open for another few minutes, it was best to make sure he wouldn't be in pain when they got to it. Taehyung looked down when Jungkook removed his fingers, curious and excitedly he stared at the siren that pulled himself up on his hands and his hip where his tail started came into view. He could see a small slid open up and the siren's member came out, it looked almost like a human one, just.. how to say it, it was less detailed, and more thick at the bottom.

"damn" he mumbled and bit his lip when the tip was pressed against his wet entrance.

"I'm sure you'll love it" jungkook said with a chuckle, he placed his hands next to taehyung's hips tightly against his waist so the human wont slide away from him and pushed his hip forward. His long member slid in with ease until it reached the part where it thickened up. That was the spot where his seeds were being kept until release.

"why is it so big there... fuck im not used to this" taehyung said and grabbed jungkook's wrists tightly to grip the pain away.

"I have to keep my milk somewhere for you"

"don't call it milk!" taehyung chuckled, the short moment of distraction made him relax his bottom and at that exact moment Jungkook gave a firm thrust forward and the thick spot was pushed inside, almost immediately the entrance clenched down around him keeping the ball inside tightly. "Shit, warn me first!" taehyung said feeling a tear spring in his eye. the stretch was quite painful.

"im sorry my love, i was growing impatient." Jungkook said and kissed taehyung's thighs that were the closest to his face. He couldn't reach taehyung's face from where he was, he shouldn't leave the water. Slowly, very slow he pulled his hip back. It was hard to pull the ball back out, the entrance still needed some stretching, but it will eventually.

Taehyung groaned softly when he felt the thickness get pulled back out followed by the length. It was such a strange shape to him that it actually felt oddly good. It filled him up so well, pressing against all the spots he liked.

"It hurts, but it's so good. '' Taehyung said, he was getting excited thinking about when the siren would speed up and the pain had faded. oh yes, he wants that. so he was more than happy when Jungkook pushed back inside. the ball that kept being pushed back his rim, stretching it open. was really making the human feel good. There was something about it intriguing him. Maybe it was that it made him feel like he was being shaped to Jungkook's, or maybe it was just the sexual desires.

or both, who knows.

"You okay?" Jungkook asked when Taehyung had been silent for a while, he only felt the grip around his wrists, but the silence was making him a bit worried. He slowed a little with his thrusts to look up at the human.

"im fine, just go on. you can go faster. I will be fine, '' Taehyung assured the other. He didn't have to wait long for a response, the siren got to work right away. thrusting faster. letting the thick ball in his member stretch him further apart while he pleasured the human to his liking.

"oh fuck.... a-ahh yes yes" taehyung's toes curled at the pleasure and he let go of Jungkook's wrists to grip onto the rocks under him. He loved it, he absolutely loved it. He was so lost in the clouds that he didn't notice Jungkook had lifted himself out of the water more and had crawled onto the rocks with him. grabbing his thighs tightly as he sped up more, glad that the rim was starting to adjust to the ball that kept being pushed in. it made it easier now it wasnt so tight anymore. Taehyung was pulled back from the clouds when he felt kisses on his neck going up to his cheek before landing on his lips.

It's Not that he was surprised with a kiss, he was only surprised because Jungkook couldn't reach up here earlier. With a smile he parted and cupped Jungkook's face to look down. the siren had shifted and was on his knees on the rock with him. water dripping down his body. Both were completely soaked, wet hair ticking to their face mixed with arousal sweat.

"I couldn't bear being so far from you, '' Jungkook whispered and kissed the other again. The kiss was hungrily, their lips danced together and licks were given here and there. Jungkook was the one that licked more. He liked the taste of the human on his tongue. He was a predator after all, he can't help but taste a little. He can't bite so he will just have to do with licks.

"I love you '' Taehyung said, hugging Jungkook with his eyes closed, he was just enjoying the feeling of Jungkook chewing and licking on his soft neck skin. He didn't feel scared that these sharp teeth will bite into him, he knows Jungkook won't do that. that night where he attacked him was forgiven, that was different. He didn't have to fear Jungkook, not when the sea was calm like tonight.

"Okay, i shouldn't go out," Jungkook said, feeling his body burn painfully when the first breeze hit his skin. He was not healed or ready to get out of the water. so he grabbed a hold of taehyung's hips, keeping him down on his length while sliding back into the water. this time taking the human with him. He pressed the human against the rock wall who got a hold of the rocks above his head to support his weight.

"oh my..." Taehyung moaned and bit his lips seductively, this was just like a book. having sex with a siren in the water. And oh boy, it felt even better. The cold ocean water slipped in with each thrust making his hole even more slippery and taking the length even easier.

"I love you too, my human. my only prey that i will not eat" jungkook said and chuckled at the end. But his voice was now also starting to shake a little, getting taken over by the need to moan. So he did. biting his teeth together he moaned next to taehyung's head, his thrusts going faster and rougher. He was getting close. "I'm in close love," he said.

"Me too, just a little more.... wait for me, okay?"

"you better hurry then," Jungkook said.

"fuck, then go faster" taehyung said and removed one hand from the rocks to hold onto Jungkook who went rough on him now. It was a bit too much, but the desire both had for release made it feel good. They were so needy right now. "okay okay, i'm there, dont stop dont"

"I want to fill you up" the siren whispered in his ear with a few licks on his earlobe.

"do it, please, fucking do it" taehyung couldnt be turned on even more but if it could he would definitely be more turned on that he already was. Jungkook said that sounded so sexy.

to that answer Jungkook's fingers digged into taehyung's waist and he pressed the human firmly down slipping the thick ball inside that surprisingly to taehyung seemed to grow even more. He gasped feeling a painful stretch that moved deeper until the whole load was shot out. hot seeds being shot inside of him filling him up so well. "mine..." Jungkook said softly and they waited until the whole ball was emptied before he lifted the human off his length and his member disappeared back in the slide of his tail.

Gently he placed the human back on the rocks and looked at him, it was a nice sight to see his cum drip out of the human's hole. It made him feel... possessive.

He doesn't want to think of anyone doing the same to his human. The image of anyone just touching him angered him suddenly and he felt his face darken, his teeth throbbing in hunger.

"kook?" Taehyung said when he looked at Jungkook, he could see the siren was acting a bit differently. He looked so mad right now. "Is something wrong?"

"Nothing is wrong my love, I was just admiring the job I did," Jungkook said, shaking off the thoughts, he shouldn't let that take him over. Humans will not understand, they do not accept such behavior. Jungkook had to behave, so he pushed away those feelings and just smiled, placing his arms on the rocks and resting his head on them.

Oh how he wanted to just climb out and lay next to the human, hugging him lovingly. It saddened him that he couldn't, he can't leave the water.

"You're amazing, i think this was the best sex i will ever have" taehyung chuckled and moved closer to jungkook, laying on his side so they could look at eachother. He could feel the seed still slipping out of him with every movement, the relaxing of his muscles down there made his hole not keep in the cum and just let it drip out.

"It better," the siren replied.

"I can't wait to take you back home again..."

"Then we can do this again. on the couch.... the bed... the car.. maybe even on the table-"

"yah, calm your hormones. i first need to process all this, my ass if going to be in so much pain tomorrow"

"practice makes it easier"

taehyung blushed and they both laughed and held hands for a long time until it was time of taehyung to go back, he was getting hungry and cold since the night had already fallen by then,

--- 

smut, lol.💦

 i hope it was alright, i havent written smut in so long omg. I wasnt sure if i would be able to fill a chapter again. but i think i did it? anyway, i hope you enjoyed. see you in the next chapter.

🌼🌼🌼