redunderbelly
Fandoms
Recent works
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i'm not the same as I was (but neither are you) by redunderbelly
Fandoms: Thunderbolts (Movie 2025), Marvel Cinematic Universe
11 Jun 2025
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Summary
Bob and Yelena had become each other's source of light when things got dark. It's only fate that things developed further, right?
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i will hold your hand (even if it hurts) by redunderbelly
Fandoms: The Magnus Archives (Podcast)
21 Nov 2022
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Summary
Elodie finally gets Jon to take a break.
Jon desperately needs a bath, a meal, and a friend.
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let the seabirds cry by redunderbelly
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia
22 May 2021
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Summary
when ayako robs a prince and it all gets drastically out of hand.
Recent bookmarks
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Entangled in a Web We’ll Never Escape (but we don’t want to leave, do we?) by That_Gay_Unoriginal_Bastard
Fandoms: Spider-Man (Tom Holland Movies), Spider-Man - All Media Types
16 Aug 2026
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Summary
Frank didn’t know what to expect when he’d gotten a text from Spider-Man that simply said “Empire State Building” and nothing more. But he didn’t expect to wind up talking the kid down from the fence. Or taking care of him. Or having dirty dreams about him. And certainly not moving in together.
And yet all of that happened.
And Frank had no idea just how deeply entangled with Peter he’d end up getting.Series
Bookmarked by redunderbelly
12 Sep 2026
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Company by Geimeo0
Fandoms: Marvel Cinematic Universe, Spider-Man (Tom Holland Movies), The Punisher (TV 2017)
23 Aug 2026
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Summary
Peter’s breath stuttered. He stayed quiet for a long moment, body tense and curled. When he finally spoke, the words came out thin and cracked. “It’s fine. Besides, even if I t-told you…” He trailed off. His hand tightened in the front of Frank’s shirt, then loosened again. “God. I can’t even k-keep it together.”
The next sob tore out of him loud enough that Frank felt it vibrate through both of their chests, Peter’s whole body straining with it. He tried to pull his knees up higher, to make himself smaller, but Frank’s arms wrapped around him prevented Peter from hiding anymore than he already was. Frank cupped the back of Peter’s head with one big hand and pressed his face gently into his shirt, the fabric dampening almost immediately. He felt the wet heat of tears and the uneven hitch of breathing against his sternum. Something in Frank’s chest shifted at the sight of it—
The red rims of Peter’s eyes when he briefly lifted his head, the way the tears tracked down his flushed cheeks, the open-mouthed, ugly shape of sadness and anxiety. It shouldn’t have done anything to him...
It did.
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Or: Peter goes through some new changes caused by his new spider DNA. Frank helps.Series
- Part 1 of SpideyCastle One-Shots
Bookmarked by redunderbelly
10 Sep 2026
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fangs full of venom (can they be full of you, too?) by deersnout
Fandoms: Spider-Man (Tom Holland Movies), Spider-Man - All Media Types
02 Sep 2026
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Summary
Peter wakes up with yet another new phenotypic spider trait: venom glands and altered canine teeth.
With this new characteristic comes an unbearable ache; a pain that bleeds into his head and further complicates Peter's sense of identity, testing his strict morality as arachnid instincts fight to display themselves alongside his humanity. It bubbles over when Peter bites someone for the first time, because for a moment, he was sure his venom had killed the man.
Convinced that he has no sane outlet to relieve the throbbing in his gums, Peter isolates himself. Then Frank Castle wedges his way into the situation, and suddenly, there is a... solution. It's weird. Unconventional. Peter wouldn't dare go to anyone else for something like this; he isn't even certain anyone else could handle it. So he keeps finding his way back to Frank for relief. And maybe for the company, too.
Bookmarked by redunderbelly
03 Sep 2026
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Summary
A shift in hormones means a shift in how your suppressants work…which means an impromptu heat…
It’s completely unintentional, but there’s one person who said he can crash with him when he needs to. So that’s what Peter does.
Bookmarked by redunderbelly
03 Sep 2026
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sweet release by frnkcstleluvr
Fandoms: Spider-Man (Tom Holland Movies), The Punisher (TV 2017), Marvel Cinematic Universe
24 Aug 2026
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Summary
Peter Parker once swore he would never do drugs or alcohol.
It’s funny how living with Frank Castle changes things.
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basically just frank & peter get high and then they fuck.
Bookmarked by redunderbelly
30 Aug 2026