Mosercest
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I know you've felt it - the darkness. The surrender to it. How sweet it feels. They just don't understand. But I do. You've never tasted it like I have. I'll show you what you're missing. Biney centric. Only slashy if you squint.
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He is his brother and the only one he ever wanted to set free.
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“I have a lot on my mind,” Dexter said finally, his voice faint.
He was trying to dissuade him, say no ever so delicately. The need to explain and apologize was evident in his tone, but that’s not what Brian wanted and he wouldn’t give up so easily. He closed the gap between them and pressed against Dexter, making his aching arousal known. He put one arm around his stomach and rested his chin on the shorter man’s shoulder, “I can help you get your mind off of everything that’s bothering you.” Brian gripped his hair for leverage, making him tilt his head, giving him better access to place kisses on his neck. When he looked down, he saw his brother’s knuckles were white.
He was so close to giving in, he knew he could sway him.
“Dexter,” his voice was calm, confident -cocky even, and, yet, the yearning he felt was palpable, “Come now, there’s no need to be shy.”
“I’m not shy.”
“Then tell me why you’re saying no-” he hungered for him more than he ever had as he worked his hand down the front of his pants, “-when you’re already this hard”.
AU where Brian as Rudy asks Dexter out on a date and he accepts.
(Note; Dexter never met Rita and Rudy never asked Deb out.) -
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Those first tender years of her life the Shadow was all Poppy Potter had. It was want and need and a murky promise of an inevitable craving. The Shadow was her friend, but they aren't a very nice one, and they have set her on a path of blood, betrayal, and brotherhood. Why play cat and mouse when you could play cops and serial killers?
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Whole Nebraska episode but with a happy end written in my style. Chapter posted (finally)
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Brian tracks down Dexter when they're still kids. Everything changes.
Series
- Part 1 of Mosercest AU
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Dexter gets kidnapped by a very special man, who has more surprises in store for him!!!!!
I wrote the majority of this in a mental hospital so i apologize if things aren’t strictly following canon!!!
Also i’m new to the fandom :) it’s my first ever Dexter fanfic!!!! -
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Summary
Dexter couldn’t shake the feeling that something about Rudy was not right. He’d seen that look before—the calm, detached demeanor. He’d seen it in himself. And now, Rudy was in his world. And Dexter couldn’t help but wonder if Rudy knew more than he let on.
Or, an alternate timeline where Dexter is not a serial killer and Rudy Cooper work as a Forensic Pathologist in Miami Metro.
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After bought some groceries, Brian found Dexter getting busy in the kill room to cleaned up his victim. As a supportive brother, it's not his fault that the remaining blood on his little brother's hands made him wanted to devour Dexter even more.
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The bond wailed in protest, the ache of separation sharp and sickening, a gaping hole where Dexter was supposed to be. Brian clawed at his own chest, gasping, trembling, curling in on himself as the pain hit him like a sledgehammer.
Or, Brian Moser has always known he was different since he presented early as an Alpha. Forced to grow up too soon after a traumatic childhood, he became fiercely protective of Dexter, the only person who ever mattered to him. Until fate separated the two of them and Dexter forgot about him, but always questioning the same thing—why is there a mark on his neck when he never bonded with anyone before?
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still i adore you with your rotten hand in me by atticuseros
Fandoms: Dexter (TV), Dexter Series - Jeff Lindsay
10 Mar 2025
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Brian didn’t say anything and Dexter wept again. He’d throw his body to the ocean tomorrow, but tonight, he’d stay here, curled beside his beloved brother, clinging to the last piece of him he could touch.
Or, Dexter couldn't bear to part with Brian after his death, so in an attempt to deal with grief, Dexter kept his brother's body for his own good.
Series
- Part 1 of macabre of devotion
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how to get your big brother's attention, Dexter Morgan way. by atticuseros
Fandoms: Dexter (TV)
13 Mar 2025
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Summary
"Oh, Dexter.” Brian purred, kneeling between Dexter’s legs, kissing his stomach, then lower, mouthing the lace where it hugged his cock. “My sweet girl is greedy, gonna spoil you, Dex, gonna fuck this pretty little thing ‘til you’re crying for me, yeah? How about that?”
Or, Dexter felt weird for not being included in Brian's little killing ritual, and this costume he bought from a local shop would definitely help.
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My brother is my unspoken half. I ache to fill and bring back the warmth of our past, and I wonder if death has bound him to me more fiercely than life has ever dared.
Or, Brian’s obsession evolves into a necrophilic fantasy after the news of his baby brother's death. If he can’t have Dexter alive as his brother-in-arms, he’ll preserve him forever as a perfect, eternal companion.
Series
- Part 2 of macabre of devotion
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The game is this: Brian would set a perfect stage for Dexter, an innocent kill outside of Harry's stage of Codes. And Dexter have to play, proving his devotion to Brian's also. It was their pact, their perverse communion, and tonight it will begins.
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A fic where Dexter decides to not kill Deb and Brian. He fakes Brian's death and keeps Brian hidden away from Deb. The brothers work together as partners in crime. Dexter is confused, lost and tempted to give into Brian's manipulations. Will he eventually give in? Will Debra find out about Brian?
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The more I talk about him, the more they drug me. Even if he alone is my drug, my sole addiction. More pills won't make me stop thinking about him. They will only give me more alone time to use.
A retelling of the story from Brian's pov. His life isn't talked about enough for me.
Series
- Part 1 of Love me like I died for you.
Bookmarks which have used it as a tag:
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Summary
Dexter isn’t ashamed of the way he thinks about Brian. Most of his life exists within the safety of his own mind, after all, with no one to tell him to stop. But much like the dark passenger, the thoughts have begun to gnaw at the edges of his control.
Brian is the first person to truly understand him, and Dexter isn’t sure he’s willing to risk losing everything for something that might only exist in his head.
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Deb's new boyfriend--Rudy Cooper--shows up at Dexter's door with steak and beer. Dexter continually finds his thoughts drifting away to the man's eyes, hands, and lips.
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Rudy stalked up to in front of where Dexter was standing, and looked him dead in the eye once again. His hands trailed to the ends of Dexter’s sleeves, adjusting them a little.
“Just tell me this one thing, Dex,” he trailed off, a curious look on his face. “Does talking about dead mothers normally turn you on, or is it just this once?” -
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Miami glows in neon and sweat, a city thrumming with heat and hunger. For Debra’s sake, Dexter steps out of his comfort zone and into the skin of someone else—someone who belongs to the streets, where bodies are currency and danger lingers in every shadow.
He’s hunting the Ice Truck Killer, but the game is slower than he anticipated, a chase drawn out in flickers of movement just beyond his reach. Every step deeper pulls him further from himself, from the clean lines of his routine, from control. The city watches. The killer waits. And Dexter, for the first time, feels like prey.
— Or; Debra asks Dexter to go undercover as a prostitute and he obliges.
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Dexter gets it on with Rudy in his car. With his dead father's ashes right next to them. If he had a conscience, he'd probably feel really bad.
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how to get your big brother's attention, Dexter Morgan way. by atticuseros
Fandoms: Dexter (TV)
13 Mar 2025
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Summary
"Oh, Dexter.” Brian purred, kneeling between Dexter’s legs, kissing his stomach, then lower, mouthing the lace where it hugged his cock. “My sweet girl is greedy, gonna spoil you, Dex, gonna fuck this pretty little thing ‘til you’re crying for me, yeah? How about that?”
Or, Dexter felt weird for not being included in Brian's little killing ritual, and this costume he bought from a local shop would definitely help.
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Summary
“It’s a gift, he decides, more than it’s anything else.
When Dexter’s eyes open again. . . it’s Brian, Biney, that comes forth through the mist of tranquilizer, hazel to green, green to hazel, he gives him a single look that says everything Dexter has ever wanted.
Needed, really.”
Or; Debra is never taken to the Moser’s childhood home. The Ice Truck Killer, Brian Moser, lures Dexter Morgan there alone. It’s all he’s wanted.
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He Won’t Miss It by Moss (WrenAndMoss)
Fandoms: Dexter (TV), Dexter Series - Jeff Lindsay
13 Apr 2022
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Summary
After breaking into Dexter’s apartment, Brother Brian takes home a souvenir or two.
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Dexter plays with the Ice Truck Killer feeling like a high school girl in love, and that's already weird enough for him. However, soon Rudy Cooper comes into his life and events take, well, an even more unexpected turn to say the least.
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Brian isn’t particularly shy about asking Dexter to engage in his stranger interests. (Dexter doesn’t judge. He’s cool like that.)
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“I have a lot on my mind,” Dexter said finally, his voice faint.
He was trying to dissuade him, say no ever so delicately. The need to explain and apologize was evident in his tone, but that’s not what Brian wanted and he wouldn’t give up so easily. He closed the gap between them and pressed against Dexter, making his aching arousal known. He put one arm around his stomach and rested his chin on the shorter man’s shoulder, “I can help you get your mind off of everything that’s bothering you.” Brian gripped his hair for leverage, making him tilt his head, giving him better access to place kisses on his neck. When he looked down, he saw his brother’s knuckles were white.
He was so close to giving in, he knew he could sway him.
“Dexter,” his voice was calm, confident -cocky even, and, yet, the yearning he felt was palpable, “Come now, there’s no need to be shy.”
“I’m not shy.”
“Then tell me why you’re saying no-” he hungered for him more than he ever had as he worked his hand down the front of his pants, “-when you’re already this hard”.
AU where Brian as Rudy asks Dexter out on a date and he accepts.
(Note; Dexter never met Rita and Rudy never asked Deb out.) -
A Familiar Nursery Rhyme Hummed Ominously by cola_conjurer
Fandoms: Dexter: Original Sin (TV), Dexter (TV)
24 Feb 2025
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Summary
Dexter takes Deb to a Halloween festival and while she's away, Dexter finds someone to play with
Series
- Part 1 of A Match Made in Hell Fest
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Summary
The game is this: Brian would set a perfect stage for Dexter, an innocent kill outside of Harry's stage of Codes. And Dexter have to play, proving his devotion to Brian's also. It was their pact, their perverse communion, and tonight it will begins.
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And I Want It All With You by cola_conjurer
Fandoms: Dexter (TV), Dexter: Original Sin (TV)
11 Apr 2025
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Rudy Cooper is back in town for Dexter
Series
- Part 2 of A Match Made in Hell Fest
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Dexter and Brian become infatuated with their neighbor, Mrs. Bennett.
Series
- Part 1 of RitaMosers AU :)
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Summary
After bought some groceries, Brian found Dexter getting busy in the kill room to cleaned up his victim. As a supportive brother, it's not his fault that the remaining blood on his little brother's hands made him wanted to devour Dexter even more.
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Summary
In some ways, Dexter is sicker than Brian.
Series
- Part 1 of Sick
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Dexter finds a dead bird when he's three. Death seems to follow him ever since.
“What about Deb?” Dexter croaks, an afterthought bleeding in from the edges of remaining consciousness, nodding toward the body.
As if a fresh kill would ever deter Brian.
Nevertheless, he casts his eyes to the side, to the offering he gave his little brother, and his smile grows even wider, canines burrowing deep into his bottom lip as a mere wisp of a thought takes form.
“She can watch.”
One last mercy.
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Summary
Dexter couldn’t shake the feeling that something about Rudy was not right. He’d seen that look before—the calm, detached demeanor. He’d seen it in himself. And now, Rudy was in his world. And Dexter couldn’t help but wonder if Rudy knew more than he let on.
Or, an alternate timeline where Dexter is not a serial killer and Rudy Cooper work as a Forensic Pathologist in Miami Metro.
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Summary
When Brian Moser finally tracks down his beloved baby brother, he doesn’t look for a way in with fake sister Debra. Instead, he rents an apartment and becomes a friendly neighbor to the Butcher.
Things just get worse (or better) from there.