1 - 20 of 34 Works by EndlessRain
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A small peek into the Mac/Dennis annual tradition of bathing together on Christmas night. What started out as a scheme to get Mac naked turns into a decade long tradition that brings comfort to both men. Takes place in between the Always Sunny Christmas special and 2025.
For the December 2025 Year of the OTP prompts: holiday traditions, bathing together,
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"He….he could bite off Mac’s dick if he wanted to! If this was twenty years ago, there’s no way they’d be doing this. Not the sex, because let’s be real, they had drunkenly hooked up their fair share of times over the past few decades, but the trust. That Mac could just fall asleep in such a vulnerable position was getting off Dennis in ways he couldn’t possibly describe."
Or, the cockwarming fic.
For the November 2025 Year of the OTP prompts: "are you sure?", cockwarming, touch-starved
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It's Halloween at Paddy's again, only this time Dennis is determined to get Mac's attention.
October Year of the OTP prompts: shibari, costume, online dating, Mr. Brightside by the Killers
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I Don't Know How to Explain What I'm Feeling by EndlessRain
Fandoms: It's Always Sunny in Philadelphia
12 Oct 2025
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Bruce Mathis kicks the bucket. The Gang responds accordingly.
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Mac and Dennis get a little more than they bargained for when they go to Guigino's for the first time.
For the 2025 Year of the OTP September prompt(s): college sweethearts, date night gone wrong, abduction, and "come here." Each fic in this series is a one-shot unrelated to any other fics.
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In Dirty Dreams, Oh You're the One I Want by EndlessRain
Fandoms: It's Always Sunny in Philadelphia
30 May 2025
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Mac has never actually visited Dennis at college before, but that didn't matter. Mac didn't really have a plan, he just showed up. Suddenly he's following Dennis to class and watching him kiss girls at parties and he's like 99% sure Dennis has no idea.
For the 2025 Year of the OTP May prompt: stalking, "Paper Rings" by Taylor Swift.
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In between not getting invited to the Waitress’ coming out party and practically walking in on Mac and Dennis banging, Dee was beginning to feel like everyone in her life was gay, but her. And she wasn't.
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"Everyone But Sweet Dee Comes Out."
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Dennis thinks he's getting a fresh start when he drops out of vet school and Frank offers to buy him a flower shop with an apartment. What he failed to mention, however, was that the shop would also include an annoying tattoo artist named Mac. Mac is loud, always saying inappropriate things, and unapologetically himself. Dennis tries not to stumble.
Prompt for Year of the OTP, March: Flower shop/tattoo artist au, “what are you doing with that?”, fresh start, “Take Care,” by Drake.
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It's their first official Valentine's Day as a couple and Dennis is determined to win.
For the 2025 Year of the OTP February Prompt(s): sharing a bed, double penetration, "it made me think of you," and Valentine's Day. Each prompt is an unrelated one-shot.
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The Gang parties it up the night of the 2025 Super Bowl.
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Possession is Nine-Tenths of the Law, Asshole by EndlessRain
Fandoms: It's Always Sunny in Philadelphia
20 Jan 2025
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They had managed to move past the whole Johnny thing, after all. (Why the fuck had Dennis done that? He swears there had been a good reason for it, but he still can’t quite articulate it.) Their friendship was finally safe and secure, on solid ground. Dennis didn’t want to fuck that up, okay?
But Mac started wearing Dennis’ clothes again, which ignited a fire in Dennis’ body like none other.
No matter what, Mac belonged to Dennis.
For the 2025 Year of the OTP January Prompt(s): sharing clothes, first kiss
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“Kinda sounds like you’re waiting for me,” Eddie said quietly. “Is that…is that crazy to say?”
After Eddie moves to Texas, Buck haunts the old Diaz home.
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Tommy looked over at Evan Buckley and admitted something that changed Buck’s entire worldview:
“Look, Evan, I want us to always be honest with each other. Which is why I feel like I should tell you that when we all first started hanging out, it was actually Eddie that I was into, not you.”
Buck blinked. Processed the information. Then grinned.
“Yeah, I guess that makes sense. Eddie’s a hot guy. I’m always surprised when people aren’t attracted to him, you know what I mean?”
This is the story of Buck learning just how big his heart is.
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- Part 1 of down bad universe
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“Right, perhaps a former familiar, now turned…whatever you are, could go along with him, keep track of the time so he doesn’t fry?” Laszlo said, reaching over to tap the top of Guillermo’s head in emphasis.
Guillermo wrinkled his nose at the wholesome suggestion. He was a little worried Laszlo was going to suggest they fuck. He should probably be relieved that this was what Laszlo had in mind to help Nandor. “You think I should…take him on a beach date?” He smiled at the thought.
“You said it, not me. But yes, precisely. He needs to be wooed a little. Reassured, perhaps. Show him you’re locked down, so to speak.”
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Or, the fic where Laz shares some of that sunscreen, and Nandor gets a beach day, too.
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Fine, do you want the honest truth? People don’t think of him as smart, but Nandor knows a lot more than he lets on.
For example, Nandor knew almost right away that Guillermo wasn’t cut out to be a vampire.
Post-Season 5 finale.
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I Would Leave, If Only I Could Find a Reason by EndlessRain
Fandoms: It's Always Sunny in Philadelphia, What We Do in the Shadows (TV)
17 Jul 2023
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“Holy shit,” Mac breathed. All his life, he had only ever been sure of one thing, and that was the existence of God. God made sense to him, even if Catholicism didn’t. Though he had left seminary in shame, unable to keep up with the demands of priesthood, he still felt certain that God was there.
What he hadn’t considered, however, was the existence of things outside of God. Vampires, for example.
He stood, frozen, as he watched Dennis forcefully bite into the man’s neck. Blood gurgled out of the man’s lips and neck as Dennis greedily sucked. He should be running, he realized. He should go get help. This was a murder! It was wrong! But somehow, Mac couldn’t look away. He was mesmerized. Dennis mercilessly tore into his victim and this should sicken Mac. Under the yellow lights of the city, as Dennis slurped down mouthfuls of human blood, Mac couldn’t help but think that he looked sort of…pretty.
AKA Mac works as a loyal familiar to the vampire Dennis Reynolds, and tries not to let his big gay feelings get in the way. Meanwhile, Dennis Reynolds battles vampire depression while trying to keep his attractive familiar at an arm's length.
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Mac puffed his chest. “Besides! If they try and say I can’t participate just because I’m gay, then that’s homophobia! I know it’s a straight wedding, but that doesn’t mean they can oppress me like that.”
Dennis decided it wasn’t worth the argument. He also didn’t want to address the overlying meaning behind Mac’s goal of catching the bouquet. It's tradition, as Mac had said.
Or, The Gang Crashes a Wedding.
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Sequel to "You Don't Know How Much I Love This."Series
- Part 2 of So You'll Tell Me How it Is
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You Don't Know How Much I Love This by EndlessRain
Fandoms: It's Always Sunny in Philadelphia
07 Oct 2022
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Dennis was enjoying this way too much for his own good. If he wasn’t careful, his addictive personality would take over and he’d never be able to stop asking Mac for the truth.
Mac and Dennis make a pact to never lie to each other again. Once the truth starts coming out, it's difficult to keep things the way they were.
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- Part 1 of So You'll Tell Me How it Is
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The Gang had all been implying it for months, but not a single one of them had ever outright said it. Hell, right before Dennis left, Mac wasn’t really trying to hide it either. He had practically accepted this part of himself before he had accepted his gayness. Mac may have lived the majority of his adult life repressed and in denial, but he wasn’t stupid.
Post-season 12.
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Salt & Burn Comics wasn’t the best comic book shop in Seattle. Well okay, it wasn’t even in the top ten, but hey, it probably wasn’t the worst right? Alright, the sales were waning, and they hadn’t had anyone but their regulars come in for a few weeks, but Charlie was proud of her little shop, dammit. Starting your own business right out of college wasn’t easy, but she did it, and didn’t need anyone’s help… or so she thought, until a beautiful woman named Dorothy waltzes into her shop and says that she works for Leonard Baum, one of the most successful graphic novelists of the year, and that he wants to make his first public appearance in her shop. In between saving her shop, fangirling over Baum, and teasing Dean about his crush on the dreamy accountant down the street, Charlie falls a little bit in love with the woman who suddenly fits snuggly into every corner of her life.