1 - 20 of 164 Works in Merperson Jason Todd
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Espresso-sized fics where I attempt to rip your heart out and into as many pieces as I possibly can in as few words as possible!
New chapter:
19. Jason and Bruce get chili dogs.Series
- Part 2 of mini fics
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(Podfic) How to Train Your Mers by EeveeIsEevil for JUBE514, SalParadiseLost
Fandoms: Batman - All Media Types
06 Jul 2026
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again and he silently begged for any sea god to please let him out of the dizzying, pitch-black hell. His body ached from getting beaten into the box’s side. The water was stale and disgusting in his gills. There wasn’t any light and he couldn’t see anything.
He was so full of fear he was beginning to get numb to it.
He didn’t know what these humans wanted with him, but he knew it couldn’t be good if they started by shoving him into this too-small box and tossing him around like a boat on an angry sea.
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Clark is an aquatic mammals trainer at the Metropolis Aquarium and Bruce is their very unruly new resident. Clark doesn't realise that Bruce is only the first of many mers that are going to live in the Aquarium.
(Technically the original work has 19 predicted chapters, but it's been left on 16 for awhile)
[ Chapters Done: 5/16 ]
[ Word Count: 77,880 ]
[ Podfic Length: 2:31:32 ]
Series
- Part 15 of Podfics
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The mer at first glance wasn’t a good match for his brother. Dick was slim, his tail was fairly small, but this mer’s tail was obviously muscular and bigger than Dick’s had ever been. His chest was also large, with rounded breasts on it. But then Jason looked closer. His skin was the right colour for his brother, his hair was the right colour and texture, his facial features were shaped just like Dick’s. And there was a bite mark around his nipple exactly like Dick’s had in the photo they’d found.
And hadn’t Dick been mated and bred according to that paper? Dick was an omega now, right? The condition he was in, with the oversized chest and tail were common in the first year after giving birth. The tail grew larger while carrying and would stay big as long as the omega used it and needed the strength it provided, which was common when caring for a pup. And the chest was expanded until the pup was weaned. If Dick had only recently gotten pregnant in that article photo, then his pup would be about six months old.
Bruce frowned. “I don’t–”
“It’s Dick,” Jason said, placing his hand on his father’s shoulder and squeezing. “He had a baby, dad.”
Series
- Part 2 of Called to the Sea (Mermaid Biology Verse)
- Part 110 of Smutty Birdflash
- Part 113 of Smutty DC A/B/O Fics
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Things with Fins by IAmTheShpee for Riyori
Fandoms: Batman - All Media Types, Danny Phantom
30 Jun 2026
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While on a (forced) beach holiday with his family, Jason's not having a great time. Sure he technically needs to soak in some real sea water, but that doesn't mean he's going to be reasonable about it. The siren side of him... that's not him. It doesn't feel real.
But things get complicated when he hears a baby cry out on the beach.
Series
- Part 68 of Demo’s Mer Obsessions
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Tim Drake is a lion mer, the pointy ends of his fins are covered with venom. Jason was trained out of any toxin affecting him, due to his training Talia sponsored for him and the insistent poke of an equally, if not more lethal mer pup.
Or: Jason is in heat, his brain is filled with need and Tim's venom rings too familiar, he's also the next more available Alpha who can attend his needs.
Then: Now that Tim had the most interesting and intense night of his life with Jason, he has a few things to resolve, like telling his boyfriend he got his pseudo brother pregnant and convince Jason of letting him be a participant on his pup's life.
Omega Jason Todd Week: 25th of April (Day Five): Omegas Are The Hunters During Mating Chases
Mermay 2025: Aphrodisiac Toxin
Series
- Part 4 of Omega Jason Todd
- Part 1 of DC Merfolk Works
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Jason was used to staring. As a deep-sea mer living in a coral zone, people often have weird reactions to him. However, his Moray Eel Mer neighbor with giant eyes and a habit of staring unblinkingly into Jason's soul might be weirder than most.
Written for JayTim Week 2026 Day Three for Prompt: Mermaid AU
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Lessons in Not Accepting Gifts from MerFolk | Merman! Jason Todd x Reader by up_tonogood
Fandoms: Batman - All Media Types, Batman (Comics), Batman: Under the Red Hood (2010), Red Hood and the Outlaws (Comics), Red Hood - Fandom
03 Jun 2026
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- Part 2 of Jason Todd x Reader
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gone fishin by forluck
Fandoms: Batman - All Media Types, DCU (Comics), Red Hood and the Outlaws (Comics)
25 May 2026
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don't worry Roy is exactly where he wants to be
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Except, a memory. One of the very few clear ones Bruce had of his parents.
The Waynes lived by interesting rules than the rest of Gotham's ocean. While killing other mer was frowned upon, it was not inherently wrong. The Waynes—Or rather, Bruce's parents—had thought differently.
～ DAY 7 ∙∙∙
inter-ocean travel, endangeredSeries
- Part 1 of MerMay 2026 - MainlyKnife Edition
- Language:
- English
- Words:
- 1,674
- Chapters:
- 1/1
- Kudos:
- 14
- Hits:
- 175
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Fathomless by Star_Gazing_Knight
Fandoms: Teen Titans (Comics), DCU (Comics), DCU, Batman - All Media Types, Nightwing (Comics)
25 Apr 2026
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fathomless / ˈfaT͟Həmləs / adjective – unable to be measure or understood, extremely deep
Wally never expected to come back to Happy Harbor. Not after his near drowning in the sea caves by his childhood home — which inevitably led to his parents’ divorce. But here he was twelve years later, fresh out of grad -school and moving back into his late father’s old house.
A summer spent in the sleepy town he grew up in on the Rhode Island coast should have been idyllic. A quiet three months working in his uncle’s aquarium as he figured out what the hell he wanted to do with his life. But, it turns out, finding a siren tangled in a fishing net at the bottom of the bay would only be the beginning of his troubles.
What happened to the poor Nereid who now haunted Wally’s thoughts? Why couldn’t he shake the feeling that their fates were more tangled than the net he’d cut away from its beautiful tail? And who was the so-called expert called in by the counties Game-Warden to investigate the new predator making waves in the Rhode Island Sound?
The further Wally dug, the deeper the mystery took him — and someone had swim to the bottom of it.
Good thing Wally has his diving license.
Series
- Part 1 of Thalassophilia
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When Garth asked Jason what phrases he wanted translated, the mer hunched down in the water and blew furious bubbles before huffing, “No.”
Garth frowned. You already know how to say that. What other things do you need to be able to say to Bruce and Alfred?
Of the speech, Bruce recognized his name and maybe Alfred’s. It made it feel like something was clawing inside his chest, knowing that he couldn’t communicate properly with this child living in his pool.
Jason curled his lip back. I know human words.
You really don’t.
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Or: Mer Jason's recovery from trafficking.
Series
- Part 2 of Broken waters
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Danny messages his besties for help with his current crisis. Then decides that he's definitely, for sure telling his mer husband-slash-mer-mate that he's really only half mer. As soon as possible even. Right after they eat, and after they have a shrimpy bath. Definitely. But first Danny needs to figure out what he did to make his husband all weird and probably not do that again.
Series
- Part 7 of Mer AU
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In Our Cave by EmeraldsAndAmethyst
Fandoms: Danny Phantom, Batman - All Media Types, DCU
26 Mar 2026
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Jason and Danny have a conversation and explore some kinks.
Series
- Part 6 of Mer AU
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Before the Date by IAmTheShpee for Crystalshard
Fandoms: Batman - All Media Types, Danny Phantom
28 Feb 2026
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In which Jason prepares for a date with his boyfriend, and Bruce helps.
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"I can't believe you actually saved a human," Jason said.
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Inspired by sink or swim by envysparkler and Peri_2.
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By The Cliffs In The Bay by EmeraldsAndAmethyst
Fandoms: Danny Phantom, Batman - All Media Types, Batman (Comics)
24 Feb 2026
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Danny gets his first mer style bath and finally lets Sam, Tucker and Jazz know he's okay.
Series
- Part 5 of Mer AU
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Sometimes Family Is Just the Guy Who Shows Up by AWarriorAtHeart1
Fandoms: Batman - All Media Types
25 Feb 2026
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Summary
Tim Drake knows his parents don't love him, and he's fine with that, really. He doesn't expect anything from them anymore. But for crying out loud, do they really have to send him to another country halfway across the world just to get rid of him? And what's this? A storm? Why does the world hate him?
Jason Todd knows exactly what he is doing when he runs away from his pod. He's going to prove that not only can he survive on his own just fine, but in fact, will THRIVE. He's going to NAIL this survival thing so hard, Dickhead will never make fun of him again. He's not a guppy anymore and he'll prove it!
Or. Or. Two idiots meet on the ocean and realize that two idiots working together are way more likely to survive than two idiots alone.
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In The Lair In The Caves by EmeraldsAndAmethyst
Fandoms: Batman - All Media Types, Danny Phantom
03 Feb 2026
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Jason tracked down his annoying little brother and told him his mate and his suspicions about his mate being trafficked. He didn't want to wake Danny up early, his mate needed his sleep after everything he'd been through. But when Jason is ready to end his day and his mate is still sleeping Jason starts getting worried.
He hadn't needed to worry. He wakes up with his mate being an impossibly attractive menace and insisting on doing weird and kinky human things. Starting with kissing.
Series
- Part 4 of Mer AU
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Bruce owns a facility for the study and rehabilitation of mers, and runs a popular blog featuring the mers he interacts with. Having successfully released Dick, the mer he grew to see as a son, Bruce expects to retire the blog.
Then a little mer pup steals his equipment and his camera.
Daily-ish short stories from the MerMay 2024 prompt list on tumblr.
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Under The Bay, In The Lair by EmeraldsAndAmethyst
Fandoms: Danny Phantom, Batman - All Media Types
25 Dec 2025
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Danny should really let Sam, Tucker, and Jazz know he's okay. They know he's in Gotham and he's definitely missed one check in.
On the other fin, the hot new mer that just boned him stupid is going to give him a meal and possibly more incredible sex.
Eh, it'll be fine. He'll get back in cell range when he wakes up.
Series
- Part 3 of Mer AU