15 Works by string_of_hearts
Listing Works
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Navy Blues by string_of_hearts
Fandoms: Shingeki no Kyojin | Attack on Titan, Attack on Titan
12 Aug 2026
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Summary
Bertolt’s new sweater leaves Reiner unraveled, unhinged, and indecent. Bertolt is confused, but he isn't complaining. Not the whole time.
Desperate smut, and the pre-RTS lore that explains it.
Reiner's hands are gripping his sides, fingers digging into the wool. He twists it up in fistfuls. His mouth moves against the hollow of Bertolt's stomach, spreading a hot pool of breath through to his skin. Bertolt can't tell if he's moaning or talking. He pushes against his head, trying to peel his face away.
"Stop, you dick. You're gonna get spit all over it.”
Series
- Part 13 of Crybaby | Bertolt’s World
- Part 6 of Reibert Smut Sanctuary
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Crybaby: Aftercare by string_of_hearts
Fandoms: Shingeki no Kyojin | Attack on Titan, Attack on Titan
09 Aug 2026
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Summary
Bertolt's been dead for a while. It's fine. Better than being crushed between a titan's teeth, which is the last thing he remembers.
An inconvenient awakening in the Paths.
A certain someone in the distance.
Ugh, he's only been back for thirty seconds and he's ALREADY crying.It’s four years later, and everything is different.
An ongoing post-canon fixit for those who think that Bertolt deserved better.
Series
- Part 2 of Crybaby | Bertolt’s World
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Love Bites by string_of_hearts
Fandoms: Shingeki no Kyojin | Attack on Titan, Attack on Titan
18 Jun 2026
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Summary
He's failed Bertolt twice—first by letting him get bitten, and then by breaking his promise to murder him. This is the next best thing. This way they'll be together. No more chasing each other through time.
Marley has fallen, the biters own the streets, and now the very worst thing has happened. Reiner can’t bear to be left behind again.
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The Commander's Closet by string_of_hearts
Fandoms: Shingeki no Kyojin | Attack on Titan, Attack on Titan, 進撃の巨人 | Shingeki no Kyojin | Attack on Titan (Movies)
30 May 2026
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Summary
Braun is another animal entirely. Erwin gets better at noticing slips of the mask. "Two-faced" isn't the right label. The correct word might be “mercurial”, or, as Levi puts it, “off his fuckin’ rocker.”
Commander Erwin Smith knows that there’s something strange about the two tallest scouts in the 104th. What secrets are Reiner Braun and Bertolt Hoover hiding?
Series
- Part 3 of Crybaby | Bertolt’s World
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Wound by string_of_hearts for Varazserdo
Fandoms: Shingeki no Kyojin | Attack on Titan, Attack on Titan, 進撃の巨人 | Shingeki no Kyojin | Attack on Titan (Movies)
06 May 2026
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Summary
Red is for love,
And for kin and for blood.
Red is a line never broken.Mikasa is bound to Eren by threads she can’t sever, woven through a hidden forest cabin.
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Chimera by string_of_hearts
Fandoms: Shingeki no Kyojin | Attack on Titan, Attack on Titan
19 Feb 2026
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Summary
Armin and Bertolt see each other everywhere. Which would be fine, if one of them hadn’t recently eaten the other.
-Chimera (noun):
1. An organism that contains cells or tissues from two or more different species or from two or more genetically different living things.
2. A fanciful mental illusion or fabrication.
3. An unrealizable dream.Series
- Part 10 of Crybaby | Bertolt’s World
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Marking Time by string_of_hearts
Fandoms: Shingeki no Kyojin | Attack on Titan, Attack on Titan
13 Jan 2026
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Summary
Reiner is stuck between then and now. Memories and sex. Bertolt and whoever the fuck this is.
A shot glass full of sad reibert, set in Marley during the timeskip.Series
- Part 9 of Crybaby | Bertolt’s World
- Part 4 of Reibert Smut Sanctuary
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To Pieces by string_of_hearts
Fandoms: Shingeki no Kyojin | Attack on Titan, Attack on Titan
04 Nov 2025
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Summary
An unfortunate fall and a sword through his shoulder make Reiner feel a certain way. It’s always Bertolt’s job to put him back together.
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For Kinktober 2025. Prompts: Outdoor Sex & Pain
Series
- Part 3 of Reibert Smut Sanctuary
- Part 5 of Crybaby | Bertolt’s World
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A Major Apology by string_of_hearts
Fandoms: Shingeki no Kyojin | Attack on Titan, Attack on Titan
10 Oct 2025
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Summary
Major Reiner Braun gets what’s coming to him, thanks to Bertolt. Bertolt gets his groove back, thanks to his inner sadistic bully. Who’s the Crybaby now?
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Prompt: “Punishment” (Kinktober Day 10)
A Reibert one-shot for FFE’s Kinktober event!Series
- Part 12 of Crybaby | Bertolt’s World
- Part 2 of Reibert Smut Sanctuary
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A Major Predicament by string_of_hearts
Fandoms: Shingeki no Kyojin | Attack on Titan, Attack on Titan
09 Oct 2025
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Summary
Boots, belts, and a brutal interrogation drive Major Reiner Braun to the edge.
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For FFE’s Kinktober event! Prompt: “Teasing"
Series
- Part 11 of Crybaby | Bertolt’s World
- Part 1 of Reibert Smut Sanctuary
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In Suspense by string_of_hearts
Fandoms: Shingeki no Kyojin | Attack on Titan, Attack on Titan
20 Aug 2025
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Summary
Reiner, an idiot, finds himself in a compromised position. Bertolt, also an idiot, comes to the rescue.
A Reibert One Shot and a cautionary tale about 3DM safety
Series
- Part 6 of Crybaby | Bertolt’s World
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Up in Arms by string_of_hearts
Fandoms: Shingeki no Kyojin | Attack on Titan, Attack on Titan
18 Jul 2025
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Summary
Reiner is a smug ass. Bertolt is annoyed beyond sanity. Two absolute idiots engaging in an epic, horny battle of strength and will.
Series
- Part 8 of Crybaby | Bertolt’s World
- Part 5 of Reibert Smut Sanctuary
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The Commander’s Bath by string_of_hearts
Fandoms: Shingeki no Kyojin | Attack on Titan, Attack on Titan
12 Jul 2025
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Summary
Reiner is minding his business and doing his chores - then he walks in on something extraordinary.
A little Reibert / Eruri Oneshot.
Series
- Part 4 of Crybaby | Bertolt’s World
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Crybaby by string_of_hearts
Fandoms: Shingeki no Kyojin | Attack on Titan, Attack on Titan
28 Jun 2025
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Summary
Bertolt is a burned out crybaby with a brutal inner monologue that just won’t quit. Reiner is a stand-up guy, but he’s not quite right in the head. Just an average pair of messy, trauma-bonded traitors, trying to survive in an eat or be eaten world.
AoT, as Bertolt saw it.
Series
- Part 1 of Crybaby | Bertolt’s World
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ATTENTION! by string_of_hearts
Fandoms: Shingeki no Kyojin | Attack on Titan, Attack on Titan
19 Jun 2025
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Summary
An absolutely unhinged, lecherous noble sets his pervert eyes on Bertolt. Shenanigans ensue. Why isn’t Erwin helping??
Series
- Part 7 of Crybaby | Bertolt’s World