Notes: WARNING: teratosex. There is sexual content in this chapter.

Thor had panicked. He had really panicked when Loki started behaving cold towards him and he should have known that it was his fault. He had been so nervous to coming back with Loki that he had felt unable to engage in a conversation with him and then, by the river, Loki had gotten naked and Thor had tried not to gawk but he couldn't help it and then Loki had spoken to him and he had lost it. He looked down and saw his body and his heart almost stopped.

Then Loki shoved him away and went to braid his hair and Thor felt cold inside. After the short ritual and Loki went into the river Thor wasn't sure anymore of what was going on so he just followed him and watched. His uncle's body changed gradually in a mesmerizing way while Thor's was almost instantaneous. He watched Loki, how his body tensed and relaxed as it became as it should. Thor felt like an intruder. It was the first time he saw his uncle's tail and it was clearly breathtaking.

There wasn't anything that he wanted more than to touch him but he stayed away, kept his hands to himself and just looked. Though all his self-control went away when Loki confronted him about his behaviour and when Loki snapped at him when they were out in the ocean he panicked. He panicked and kissed him. He kissed his uncle and when Loki tried to pull away his other hand grabbed him by the back of his head to keep him in place.

Shortly after that, Loki kissed him back. It was bliss. He felt his uncle's arms snaking around his torso, holding him firmly against his chest and the sinuous movement of his tail against his. Loki prompted his lips to open up and he did, their tongues meeting halfway, pushing, fighting to be the winner in a war that had no other purpose than conquer. Thor's hand gabbed his uncle's hair, messing up the plait, to pull his head away and look into his eyes.

Loki's lips were red and slightly swollen, his pupils were blown and his gills were working fast. Steadily, Thor went to his uncle's thorat and traced the delicate skin of his gills with his tongue. Loki sivered, nails clawing at his back, and let out a high pitched whine. Thor knew by experience that not every mer was sensitive there but Loki's reaction was the strongest he had ever seen. He traced the skin again and again until Loki's whines and shivers made the older mer were so strong and loud that other creatures could hear them from miles away.

As Thor continued his onslaugh Loki's arms left his back to try and push him away, weakly. It was clear that Loki's body was enjoying this, as Thor could feel agains his tail how Loki's scales had moved to show his entrace. And he wanted. He had wanted to possess Loki for a long while now and having his body so compliant was like a dream come true. He had no eggs at the moment, but if he had had, Thor was sure he would take this oportunity to lay them in Loki. Oh! That would be the most wonderful thing to happen. Instead, he could just push inside and spray Loki's pouch. His own scales started moving as his ovipositor pushed out.

Then, Loki tried to push him away again, incoherent sounds coming from his throat. Thor retreated and looked at his uncle. His hair was messed up, there was a high blush on his cheeks and he was panting, but there was a tremor to his form that had little to do with excitement and now his pupils were contracting in what seemed to be fear. Fear... Thor's excitement died in an instand and he released his uncle.

"Oh! Ah... I'm sorry," he said before turning around and swimming away from his uncle.

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Loki gave himself a few moments to regain his composure befor rubbing his face with both hands as hard as he could. He was as idiotic and plankton brained as Odin, it would seem. Because in all fairiness the clues had all been there, laying in plain sight. He felt embarrassed because now some of Jane's actions made more sense than before. Ha! He prided himself in being quite perceptive but it seemed that with family matters he was as bad as a new born pup. He cursed and threw himself after his nephew. No doubt his mind was in turmoil and that was dangerous in his current situation.

Thor was a fast swimmer but he lacked something Loki had, enhacement by seidr. Loki caught up with him and grabbed the end of his tail with a firm grip, making sure not to touch the caudal fin, then yanked him back, stopping his speed so abruptly that. Thor made an undignified sound and tried to swim away again but Loki was faster and stronger and managed to get a hold of one of his wrists before releasing the tail and going for the other arm.

"Stop moving!" he commanded and Thor complied, shocked at his tone of voice. They were both panting for very different reasons now. "Calm down first!" he said then, pointing a finger at his face. "First, we take care of your seidr problem, then, we talk, all right?" Thor nodded and Loki, without letting go of his wrist, lead the way. "And don't swim off again! We have still a way to go until we reach my cave," he grumbled over his shoulder, glaring at the pup. He could feel Thor's quick pulse under his fingers and the blush on his own face wasn't now from the exertion to catching up with the pup.

He was internally berating himself for not seeing it sooner. He might have been able to nip the problem at the bud and now... Now he had an infatuated pup who had discovered in mere seconds one of his most sensitives parts and knew how to make him flustered like he hadn't been in ages! And that... felt... good.

No! Thor was just a pup blinded by the maturity that Loki seemed to possess and nothing more. His own heart shouldn't be beating so fast against his ribs. Besides, he already had Svad, even if his human wouldn't live a long live at his side, that didn't mean he should... No! Stop that trait of thoughts, Loki. He gripped the wrist harder before releasing some of the pressure. He didn't say anything and Thor seemed unable to speak too.

It's a long way and his shoulder is screaming for him to release Thor and change possitions but for the life of him he cannot let go of his nephew. His mind is frantically looking for a solution to this problem. Though... Was it truly a problem? He himself had had his crushes when he was a pup of older mer. He thought they knew everything and he saw them as so powerful and knowledgable... But then he outgrew them in power and knowledge and they lost their appeal once he became of age and they flocked towards him. Uninteresting. As will happen with Thor.

Thor will realise in time that what he is feeling is just a fleeting thing and they both will be so happy and be a family and... They reached Loki's cave. It was still in disarray, but no matter, he knew where the things he needed were located. Without looking at his nephew he released him and went to gather what he needed. He used one of the surviving niches to gather there the rune-stones and ointments that can be applied underwater and other trinkets. He turned to look for his knife when he sees Thor looking at him. He stopped.

Thor's eyes were hungrily taking into his form, that much was true. He was tense, hands closing and opening as if wanting to hold... Loki could see the specific place where Thor's ovipositor was pushing against his tail's scales to break free. There was a low growl in his nephew's throat and Loki shivered, bracing himself agains the rocky wall. His own mouth couldn't contain the moan that escaped his throat and in less than a second his nephew was upon him, ravagin his mouth, hands touching him every where.

No... No! He had to stop Thor. This was a mistake. But Loki couldn't fight against it either as his own hands move to pull his nephew against himself. This time he took control of the kiss and guided his nephew's hands through his body. They were both whining and panting and moaning and when Loki's ovipositor foud its way out the contact with Thor's was almost enough to make him lost in bliss. Their ovipositors rubbed and twirled arount each other as they kissed and touched and then Thor's hand was at the base of his ovipositor, coaxing it to retreat. To his surprise it did, leaving his hole open and gaping.

The feeling of Thor entering him was bastly different to Svad's. For starters, his flesh was more flexible and vibrated with Loki's own sucktioning muscles. It also reached deeper. It was so deep inside that there wasn't anything else he could feel at the moment. He felt unable to breathe, his whole body trembling uncontrolably, hands gripping weakly at Thor's shoulders. He was dazed by the pleasure.

"Loki..." he heard his nephew's voice. "I have wanted you for so long... Loki... My Loki..." Thor's lips kissed delicately his gills and Loki whined. He felt delirious, lost in bliss and detached from himself. "I want... to fill you with my eggs... Will you let me? Will you let me lay them in you?"

"Yes..." Loki said, breathless.

"I want to fill you, now... Always..." More kisses, his tongue tracing his skin.

"...yes..."

Loki couldn't hear what Thor said after that as his whole body trembled and shook in waves. His eyes lost focus and his eardrums rang. Moments later, and Loki wasn't sure how long it had been, he could see again through dots in his vision, feel his own body again. Thor was still inside him, his ovipositor spasming and spraying inside his pouch. He had sunk his teeth on Loki's left shoulder and seemed untable to dislodge himself from Loki.

They stayed like that for a long while until Thor retreated from within Loki –it made him shiver again– but he didn't top biting him. Slowly, Loki noted that both his wrists were restrained at both sides of his body by his nephew's hands. After coming back to his senses, Loki realised what they had just done. Not only that, he had encouraged his nephew. He felt chocked. Loki already knew he was a horrible person but to do such a thing to his pup nephew? The depravity that ran through his veins was darker than he thought, huh?

He tried to say something but his throat was closed off, so, instead, he stayed there, limply, while his nephew regained his mind. He was ready for the horror that he knew would follow. Thor would realise what a grave error this had been and after Loki helped him with his seidr they wouldn't see each other again, Loki would make sure of that. He knew how to get out of the way and he had more potential lairs to escape if necessary. He swore on his blood: he would do whatever was on his hands to protect his nephew.

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Thor could taste blood. It was delicious. He could also feel a fast pulse on both of his hands that wasn't his. He blinked several times. Something smelt really good. He inhaled deeply and then felt something trembling beneath him. His mouth hurt. Slowly, he opened it and sepparated from where it had been clampped. There was a wound with the mold of his teeth. Tiny incisions on a delicious skin that marked that one as his. His tonge tasted the skin and blood and the form underneath shivered again. It wasn't trying to run or shake him off. Thor hummed.

Little by little he came back to himself. He had been dragged by his uncle Loki to his cave so he could map what was wrong with his seidr and then... Then he had seen Loki moving around, part of his hair floating around his head like a halo, free from what once was a tight braid. He had seen Loki look back at him and retreat, cornering himself. And he had seen desire... And after that he couldn't quite remember, but if his retreating ovipositor was an indication of anything then... He had fucked up, hadn't he? He had done one of the most horrible acts any mer could do to another and... And now his uncle would never forgive him.

His hands gripped harder and Loki inhaled sharply at the pain. He released him and in an instante he was at the other side of the cave. He was scared. He couldn't look at his uncle. What had he done?

"Thor... Are you...? Can you talk?" his uncle's voice was uncertain. Thor nodded. "I would prefer to hear it, honestly."

"I can. I... I am sorry..." he said as best as he could without chocking on his words.

"Thank goodness..." he heard the relief in his uncle's voice. When he looked up he saw that Loki wasn't scared or anrgy or hurt –beyond the bite marc wound– and that he looked worried. "To think that your first berserkr cycle would be like this... You don't have to worry, pup. It wasn't your fault. All right? I understand. You cannot control it yet," Loki said and Thor felt stupid once again.

"What cannot I control?"

"Your berserkr form, pup. It seems that everybody thought you wouldn't have one but... Anyways, you don't need to worry. I can teach you to rein it instead of letting it control you. But later."

It was as if Loki understood something that Thor didn't. Then it dawned on him. Loki thought that his attraction to him was a matter of his berserkr state! No! He had to tell him that he... That he lo... But... Would Loki believe him? He had done something unforgivable to him.

"I am... so-" a hand covered his mouth. Thor, startled, tried to retreat but found only rock at his back.

"No. Don't be. It wasn't that bad," Loki was right there, covering his mouth with his hand looking lovely and ravaged with shiny eyes, red cheeks and even redder skin on his gills seemed to be swollen and the bite mark on his shoulder was darker now. "In fact, it was very good," Loki whispered. "But this won't last, for you, nor for me. In time you will see that this was a mistake, but worry not, for I know that pups can and will make mistakes. That's part of learning after all."

Thor took away Loki's hand, lookin at his wrists. The marks of his fingers were darkening against his skin and Thor felt his heart throb.

"I hurt you," he said with dismay.

"Yes," Loki said, his face was serious but he wasn't rejecting Thor. "As I told you, you still can't control your berserkr."

"But I love you," Thor confessed. "How could I hurt you if I love you?"

"You were... Ah... Possessed by your own desires."

"I don't understand."

"Don't worry, pup. Really," Loki said, caressing his face and combing his hair away. "I didn't know you were so experienced," he added with a mischievous smile. "Who taught you?"

Thor blushed but instead of answering he kissed his uncle again.

"I won't deny that I had a number of lovers, but I never felt so out of control with any of them. I never felt the need to fill them nor to hold them still or, or bite!" Thor mumbled to his uncle's lips.

"I see... Have you laid eggs before?"

Thor nodded.

"Though I was always careful so they wouldn't get fertilized."

"Look," Loki said, using one finger to apply some viscous thing on his forehead then on his chest. "I am sorry that you had to see me with Svad. I understand how you feel, but this... This should not happen again. Are we clear? It was pleasurable, you are very good, but I don't want to get involved with you in such a manner. Not only it would be very difficult for us to be together –I love moving around and can't stand to be tied down to only one place– I doubt Odin would be happy with me seducing his one and only heir." Thor nodded and let Loki work on his skin. It was soothing. "I just hope that now that you have tasted the forbidden fruit you can let go of it," he added, kissing his cheek. "Let's try and see each other as only nephew and uncle, shall we?" he purred and before Thor could answer he said a few words and all the world dissolved.

There was a whirlpool, black and blue and red and all the colours in between. Then he could hear chanting and he felt something tug at his lower stomach. There was a voice whispering to him that it was alright, that they were putting things back into order and that he should feel better when he woke up. The only thing that made him feel better was the thought that it was Loki the one talking to him.

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"Odin," Frigga greeted. She was laying on the algae bed that had been put for her. Until she could expel the eggs she shouldn't move. It seemed that this time the eggs were all fertilized but she didn't want to get her hopes up too soon. True to Loki's word, the tonic had helped.

"My Frigg," Odin said, tenderly. The warmth that was expressed through his remaining eye washed over her and she couldn't do less than to smile.

"Why are you here so soon? I thought you had court today."

"It got delayed. I got a message from my brother."

Frigga tried to ignore the tension with which Odin always spoke of Loki. The passion with which he talked about his older brother went from veneration to the deepest hatred. Some times Frigga wondered if Odin simply wanted to bed his brother, then she saw another thing that made her believe that Odin would gut Loki with his own claws and not bat an eyelash at all. She had also tried to gather all the rumours about Loki that she could and she had discovered little on that matter.

The most scandalous thing that had happened between the four brothers was when they had gone to the surface and adopted different shapes. Oh! Such scandal, she had thought with sarcasm. Well, now it was one of those times in which Frigga was sure Odin would strangle the life out of Loki.

"And what does he say in it?"

"Thor is back. They should arrive in three days time," he answered smiling at her and swimming to her side to take her hands and kiss them. "We will have our pup back. And he seems in good health, though until I see for myself I won't believe it but..."

"Thor is coming back?" Frigga couldn't believe it, but she felt so happy. "My pup..." She hugged her husband. "We should prepare a feast!" she exclaimed. And Odin laughed.

"Yes. But you won't move from here. I will send all the attendants that you require. We don't want..." he motioned to the lump on her lower abdomen, then caressed it.

"Very well. But I want to be there when my pup comes back," she said, laughing.

"You will."

And, while Frigga rested that day, no one told her, but everyone saw it: her hair shone brighter, her eyes were bluer and her song seemed to have come back to her voice. She was, once again, the most beautiful merwoman in the kingdom and they all were happy for their queen.

More Notes: Let's say that Odin and Loki are both nutcases. :D Next chapter may contain a familiar reunion.