CrimsonSai
Fandoms
Recent works
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Second Chance by CrimsonSai
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018), Teenage Mutant Ninja Turtles - All Media Types, Teenage Mutant Ninja Turtles (TV 2012)
05 Feb 2026
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Summary
When Raphael survives a blast into another realm, he finds himself faced with the chance to heal and find love again.
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A Taste Of Coercion by CrimsonSai
Fandoms: Teenage Mutant Ninja Turtles - All Media Types, TMNT (2007)
10 Jun 2025
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Summary
Finally fed up with his brother's disrespect, Donatello takes matters into his own hands.
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Terabyte by CrimsonSai
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018), Teenage Mutant Ninja Turtles - All Media Types
30 Nov 2024
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Summary
Once again, Donatello refuses to take care of himself. As usual.
Luckily, he has an assistant who will help him out when he least expects it.
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Trading Spaces by CrimsonSai
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018), Teenage Mutant Ninja Turtles (TV 2012), Teenage Mutant Ninja Turtles - All Media Types
25 May 2024
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Summary
In an attempt to understand mystic metal and energy, Donatello ends up on an adventure that he'll never forget.
Especially when one person in particular makes him question everything he's ever known.
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+ TMNT Adult Fanfiction Awards 2022 Winner +
+ Second Place - Best Fluff +
+ Third Place - Best Alternate Universe +
+ Third Place - Best Raphael Portrayal +
+ Third Place - Fanfic of the Year + -
Terminological Inexactitude by CrimsonSai
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018), Teenage Mutant Ninja Turtles - All Media Types
26 Dec 2023
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Summary
When trying to do something nice for someone else, Donatello is terrible at lying. Can he make up for it?
Recent bookmarks
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SFW Tcest Artwork for Fanfics by morii_kkum
Fandoms: Teenage Mutant Ninja Turtles - All Media Types, Teenage Mutant Ninja Turtles (TV 2003), Teenage Mutant Ninja Turtles (TV 2012), Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018), TMNT (2007)
19 Jan 2026
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Summary
Fanart for fics that I love
Posting here so I can tag the authors
Also includes original worksWill update the tags as needed
Bookmarked by CrimsonSai
23 Mar 2025
Bookmarker's Notes
Adorable art collection for AO3 fic writers :)
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NUMBER, NUMBER by Munchy_Mastiff
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018), Teenage Mutant Ninja Turtles (TV 2012)
31 Dec 2024
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Summary
Raphael assumed his love life would die before it started. How could he expect to be in a relationship when his brother's relationship dreams failed?
So he gave up.
Not only was it impossible to find his type, but it was impossible that they would even like him back!Then that portal opened.
Now no matter how hard he tried
he can't forget him.
but he still tries.
tries to forget him.
He just hopes to god Dee saved his number.
Bookmarked by CrimsonSai
07 Jan 2025
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Number One Fan by Genius_Built (itsnotasecrettoeverybody) for Chainlinkfence
Fandoms: Teenage Mutant Ninja Turtles - All Media Types, Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
22 Mar 2024
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Summary
Leo is a semi-secret Jupiter Jim nerd, and self-proclaimed number one fan of the fandom’s most prolific writer, OthelloVR. So when his flirting lands him in an online relationship with the wickedly smart and handsome Othello, it almost makes it easy to forget his unrequited crush on Donnie. Almost. Donnie never thought he’d succeed in dating anyone, let alone the funny and charismatic Blue; and while the cloaking brooch makes him look like Othello, Donnie’s never been good at lying. But what human could love a mutant ninja turtle anyway?
As Leo grapples with his insecurities and Donnie struggles to be a good partner, an old villain resurfaces, threatening not only their relationship but their lives. Caught in a web of lies and mounting danger, Leo realizes there’s more at risk than just a broken heart, while Donnie faces the terrifying possibility of losing everything he holds dear, including the one person he's always wanted but believed he could never have: the infuriatingly attractive Leonardo Hamato.
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2023 AFFA AWARD WINNER!
1st Place: Best of All Time, Fanfic of the Year, Best Leonardo, Best AU, Best Fluff
2nd Place: Best Donatello, Best Multi-ChapterBookmarked by CrimsonSai
01 Mar 2024
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Love Languages by Nicole_Rockers
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
14 Apr 2025
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Summary
Mutually pinning turtles express their own affections in their love languages, and it causes the other to become a flustered mess, unable to process the love given, second guessing if it's just affection or something more.
Aka, RaphDon fluff while they figure it out <3
Bookmarked by CrimsonSai
19 Feb 2024
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Summary
Who forges the weapons in a family of ninjas when combat is part of everyday life? A possible answer. Character reflection. Taming of steel and spirit.
Bookmarked by CrimsonSai
30 Jul 2022