I don't think I've ever seen the series "Flare" by WishingStar recced here so I wanted to do it. It's a soulmate AU and it's pretty angsty so far (the verse is still WIP) but it is so good, probably my favorite soulmate fic.
Thank you for writing in!
Some people choose their soulmates, fostering a bond over years of trust and intimacy. Others—well, they flare instead. Flaring betrays a lack of discipline, people say. It’s improper, bonding out of wedlock. It’s risky, leaving your soulmate up to chance, when a flare won’t always distinguish between an appropriate match and a deviant one. And there’s something vaguely sordid about bonding through a surge of uncontrollable lust.
Steve never meant to flare with anyone, least of all with Bucky Barnes.