To fill the prompt, "unexpected consequences of planned soul bonding" I created a multifandom list of fanfiction recommendations. I've never read a soulbond fic until I took up this challenge and I was pleasantly surprised that I liked many of the general premises behind the stories. I was surprised, however, that there were so few that adequately appeased my tastes and the prompt. So, this list is focused primarily on the consequences of soul bonding, period. This list is also exclusively male x male relationships.
Also available on AO3 as a collection. Title: A Thin Red Thread
Fandom: Sherlock (TV)
Pairing: Sherlock Holes/John Watson, Mycroft Holmes/Greg Lestrade
Word Count/Size: 4,638
Rating: T
Warnings: AU
Summary: "An invisible red thread connects those destined to meet, regardless of time, place, or circumstances. The thread may stretch or tangle, but never break." - Ancient Chinese Proverb
Note: Hurt - In a world where everyone is born with a red thread tied around their finger to indicate their soul mate, Sherlock is apprehensive of his connected's opinion of him when his connection should be reassuring.
Title: Back to Back (They Faced Each Other)
Fandom: Hawaii Five-O (2010)
Pairing: Steve McGarrett/Danny "Danno" Williams, Steve McGarrett/Catherine Rollins, Steve McGarrett/Lori Weston
Word Count/Size: 23,880
Rating: M
Warnings: AU
Summary: Danny didn’t even realize that Steve was a sentinel when they first met. That probably said a lot right there about what kind of a guide Danny was.
Note: Hurt - Steve and his guide are technically a well matched sentinel/guide pairing, but he finds their bond lacks emotional depth.
Title: Choices
Fandom: Dresden Files (books)
Pairing: Harry Dresden/Johnny Marcone
Word Count/Size: 28,325
Rating: M
Warnings:Consent Issues, Dubious Consent, AU, Dom/Sub, Angst, References to child abuse and rape
Summary: In an AU to Changes, Harry sold himself to John Marcone instead of Mab. They both take a while to adjust to this. Written for the Kinkmeme, for a prompt requesting both serious treatment of the issues and smut.
Note: Hurt/Comfort - Dresden and Marcone perform a healing spell that bonds them for life, but without knowing the full extent of the spell's power over them.
Title: Kahu a Alaka'i
Fandom: Hawaii Five-O (2010) / The Sentinel
Pairing: Steve McGarrett/Danny "Danno" Williams
Word Count/Size: 15,906
Rating: Explicit
Warnings: AU
Summary: In a world where Sentinels serve the military and Guides are chattel, Steve is an unbonded Sentinel and Danny an unwilling Guide.
Note: Hurt/Comfort - Danny learns of the consequences of an unfulfilled bond and of the nature of positive sentinel/guide relationships.
Title:Together, Let the Sky Fall
Fandom: James Bond (movies), Skyfall (2012)
Pairing: James Bond/Q
Word Count/Size: 8,563
Rating: M
Warnings: Graphic depictions of violence
Summary: James Bond does not need a Guide, and he certainly does not need a skinny thirty-something in a cardigan to tell him what to do.
Note:
Title: Positive Thinking
Fandom: The Losers
Pairing: Carlos "Cougar" Alvarez/Jake Jensen
Word Count/Size: 457
Rating: T
Warnings: N/A
Summary: Jensen touches things he isn't supposed to.
Note:
Title: Unbound
Fandom: X-Men: First Class (2011)
Pairing: Erik Lehnsherr/Charles Xavier, Charles Xaviers/Other(s), Erik Lehnsherr/Other(s), Erik Lehnsherr/Sebastian Shaw, Moira MacTaggert/Charles Xavier, Erik Lehnsherr/Magda Maximoff, Cain Marko/Tom Cassidy, Sean Cassidy/Moira MacTaggert, Erik Lehnsherr/Jason Wyngarde, Emma Frost/Charles Xavier, Amelia Voght/Charles Xavier, Armando Munoz/Alex Summers
Word Count/Size: 238,522
Rating: Explicit
Warnings: Underage, rape/non-con, character death, bullying, forced marriage, dubious consent, humiliation, breathplay, spitting, abusive partner, knifeplay, bloodplay, abrasion play, caning, dom/sub, BDSM
Summary: Thousands of miles apart, Erik Lehnsherr and Charles Xavier form a soulbond. But when that bond is severed five years later, they have to spend the next ten years trying to rebuild their lives alone.
Note: Hurt/Comfort - Charles' telepathy allows him to speak to Erik through his soul bond. Many believe Erik is sick because of it.
Title: Winter Comes with a Knife
Fandom: X-Men: First Class
Pairing: Erik Lehnsherr/Charles Xavier
Word Count/Size: 73,450
Rating: M
Warnings: Graphic depictions of violence, war
Summary: It apparently came to no one’s surprise that the war-mage Erik Lehnsherr took up residence in the Dark Keep. I knew he was going to choose my sister, Raven, to be his apprentice so why wouldn’t he let me go? What did he want from me?
My name is Charles Xavier, I can read minds and use magic. I’ve met Kings and Queens, mages and magic users. I’ve travelled through lay-lines and jumped through the Dark Void… but none of that really matters.
I am leading an army into war, I am scared and I never wanted this. I’ve come to realise that what I want, rode into my life when I was still a child. Now he’s out there, ready to charge into battle. Ready to die for me.
Note:
Title: When We Finally Hit the Ground
Fandom: Supernatural
Pairing: Castiel/Dean Winchester
Word Count/Size: 6,976
Rating: Explicit
Warnings: Wingfic, near death experience
Summary: Leap: verb 1. to spring through the air from one point or position to another; jump 2. to move or act quickly or suddenly 3. to pass, come, rise, etc., as if with a jump. Antonym: Fall.
Dean leaps.
Note: Comfort - Bonding with an angel gives Dean some angelic mojo. Sweet.
Title: Your Favorite Old-Fashioned Fairytale Romance
Fandom: White Collar
Pairing: Elizabeth Burke/Peter Burke/Neal Caffrey
Word Count/Size: 12,443
Rating: Explicit
Warnings: AU
Summary: Such a small touch, that whisper of skin against skin.
Note: Hurt - Elizabeth and Peter are already imprinted, but Peter imprints on Neal. This causes everyone involved discomfort.