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Fili always knew that the feelings between he and his brother wouldn’t be ignored. They had always needed each other more than they should, wanted each other more than they should. It was an open secret in their family that no one wanted to confront - don’t look and let it be. It’s harmless.
Except it wasn’t harmless. Not for Fili, anyway, and thanks to his brother’s obsession with surreptitiously fucking everyone important associated with their family business, the fallout of this being found out would be nuclear in scale. If their uncle ever became aware, it would needlessly tear their family apart, as well as the business they’d worked so hard to rebuild for so many years.
It was always supposed to be just them. That’s all Fili wanted. That’s all he needed. Despite being in an incestuous relationship with his little brother since the days he could be sent to jail for it, Fili otherwise considered himself mostly traditional. A simple person with fairly simple needs. Heaven was in Kili’s arms, between his thighs, always at his side.
This was unfortunately a big part of the problem for Kee. Kili had always leaned into the taboo of their relationship, almost like it was a kink for him in and of itself before either of them really understood what a kink was. It was more exciting to Kee before they got together, and then it was the tension and build up before their relationship became sexual that he seemed to live for. Hiding it from everyone was exciting, too, until he caught on to the fact that their loved ones had passively accepted it.
Then his adventurous needs just couldn’t be contained by Fili anymore.
The conversations had been long and fraught and repetitive. Kili still needed him, still had to have him and couldn’t live without him, but…
“I just… need more, Fee. Please understand…”
So - because Fili had never, and would never, deny his brother anything - they’d explored polyamory together. It wasn’t his inclination, but in order to keep Kili, he’d accepted it.
Never in a thousand years did he suspect that there was more to learn about himself, and that he wasn’t so “traditional” after all. He never expected it to progress to this. To him sitting naked on the end of a hotel bed with his hard and leaking cock in his hand, watching the hidden surveillance feed of Kili being fucked within an inch of his life in the room next door.
His brother had certainly suspected, though. Polyamory had been a ploy, and Fili had fallen for it hook, line, and sinker.
Kili made his rounds in their personal circle first, and there were certain partners (Kili used that term with the loosest definition) he returned to frequently. His little brother preferred pursuing older men that Thorin associated with (Fili tried very hard not to think about Kili’s peripheral obsession with their uncle - or his own), like Mr. Orophilion, Bard Bowman, and possibly Fili’s least favorite - Dwalin Fundin, their uncle’s best friend. Dwalin knew everything, knew that every time Kili lured him into an empty office or seedy motel and coaxed him into fucking his best friend’s slut-of-a-nephew that Fili was somewhere watching, getting off on it.
Which meant that, yes, horrifying as it was, the rest of Kili’s partners were unaware they were being observed by a third party. Kili hadn’t stopped at their close circle, either. Hook ups were just as common as not. Thankfully he could trust his brother to practice safe (if not sane or entirely consensual) sex.
The web of twisted connections was dizzying and he had no way of stopping it, and no desire to extract himself from it. They were in this until it came crashing down. He had no idea what Kili’s true goal was, or whether Kili even knew that himself. All he knew was that he’d become addicted to witnessing his little brother’s pleasure at the hands of others, and the oily, suffocating agony of not being good enough - not being allowed to bestow that pleasure himself - that came along with it. When Kili turned him down and reached for another, he could only describe the pain as white hot and sweet.
Yet, those brief moments when Kili would look in the direction of the hidden camera to invite Fili into the act were like one hundred orgasms all rolled into one. As if Kili for just one second dropped the pretense (that’s what it was, just a pretense) and offered his brother the respite of being in on the joke.
Look at this idiot, Fili liked to imagine Kili was thinking then. He has no fucking clue, does he brother?
And for all Fili’s battling with trust issues, Kili always comes back to him. To be cleansed, to be consoled, to be reclaimed. To share in the joke, to complain about technique or pillow habits, or reveal personal or business secrets he’d foolishly been trusted with in a moment of abandon.
It was Bard tonight, and whatever had been ailing the state prosecutor several weeks ago didn’t seem to be a problem anymore. He had Kili on his back with his ankles held wide apart, and he suckled on Kili’s big toe as he delivered a hard, fast pounding. Kili’s head was almost off the end of the mattress from the force of Bard’s thrusts. He clung tightly to the sheets and his pretty, untouched cock leaked copiously between them.
Kili was always in such a foul mood after a bad fuck, and Fili was grateful Bard in good form. He wanted Kili happy and well pleased at all times, no matter what it took.
Bard also had good endurance, so Fili didn’t bother stretching out his first orgasm. He jerked himself off fast and dirty, aiming his pulsing cock at his bare chest as he groaned and came. It was easier to clean himself off than the floor or the sheets, he reasoned. By the time he returned from wiping himself down in the bathroom, the surveillance feed showed Kili flipped onto his stomach, while Bard feasted on his brother’s asshole.
Leading up to his next orgasm, Fili edged himself and tweaked his nipples, and even considered not letting himself come at all, just so he could greet his lover with his desperation. Given how Bard was putting Kili through the paces, he thought it wiser to be prepared to wait. Kili would likely need to recover before Fili would be allowed his turn.
Finally that moment Fili was holding out for came, and while Kili was riding Bard like he was born to do it, he gazed up at the hidden camera, smiled, licked his lips, and pleaded, “Come for me, baby.”
All Fili could do was obey.