Trojan Horses – Chapter 1, by ArcticFox999 – Multifandom [Archive of Our Own]

So Alec turned his head to Jace. Even now with all those conflicting emotions running through him, with the strong need to make things right with Magnus, he still knew that the only way to save them both was to kiss Jace. How many times had he dreamed about kissing Jace? And now he was going to do it, in this nightmarish perversion of his forbidden fantasies.

Alec averted his eyes as he walked over to Jace, shame, anger, fear, sadness all running through him. His heart was beating so loud that when he finally stood before Jace, he would have worried that Jace could hear it. But he didn’t need to, because the bond had already synced Jace’s heartbeat with his own. Alec wanted to tell Jace – and Magnus – that this didn’t mean anything. But he couldn’t. Not when it meant everything.

Source: Trojan Horses – Chapter 1, by ArcticFox999 – Multifandom [Archive of Our Own]

A thrilling (and seriously hot) canon divergence from the Seelie kiss.

Truth or Truth, by selfinduced – Shadowhunters (TV) [Archive of Our Own]

“Magnus’s clothes work great on Magnus, not you. You should have just asked him to take you shopping and he would’ve picked out something that works on you. Although I get wanting to wear your boyfriend’s clothes. I’d want–” He speeds up, running off again.

“You’d want what? It can’t be that bad, we’re not talking about serious stuff. I can take criticism.” Alec says gamely as he catches up with him.

“If we were together it’d make me even crazier to see you wearing my shirt than it already does now when you borrow them. Because I could actually do something about it. I’m just glad Magnus seems to know how lucky he is.”

[…]

They’re almost at the cave when the greedy, less accommodating side of Alec wins. “What did that mean, earlier?” he blurts out, studying Jace’s face.

“He gets to know what you taste like and I don’t.”

Source: Truth or Truth, by selfinduced – Shadowhunters (TV) [Archive of Our Own]

In Edom, Jace is linked to Meliorn… and Seelies can’t lie. (Warning for cheating, but this is delicious.)

When it Happens, by Emmybazy – Shadowhunters (TV) [Archive of Our Own]

“Fight it, go get a mated pair now and close the door.” Jace hears the words but doesn’t understand, too preoccupied with running the backs of Alec’s hands over his skin. He wants Alec’s fingers to grip his waist and wrists, leave marks all over him. Jace can’t get close enough.

Out of nowhere, someone is grabbing Jace around the waist and dragging him away from Alec, “no! No, Alec!”

“It’s for the best Jace, I promise.” It’s Robert. Robert is taking him away from Alec.

“No, no, I need him, bring me back to Alec. Where is he?” Jace can’t see him, partially due to the tears blocking the way.

“Hey, I’m right here” Alec is there, hands cupping Jace’s face and wiping the tears away, “I’m here. It’s ok.”

Source: When it Happens, by Emmybazy – Shadowhunters (TV) [Archive of Our Own]

I’m very picky when it comes to A/B/O fics, but this version, where Alpha Alec manages to resist the unexpectedly Omega-presenting Jace? Yes please!

Aught But Death, by selfinduced – Shadowhunters (TV) [Archive of Our Own]

It’s a turn.

Jace is turning. His eyes change completely over from angelic gold to a bright werewolf blue, and so does Alec’s, both of them convulsing with the pain that wracks through Jace’s body.

“Alec?” Jace’s voice is the kind of raw and wounded that should never be heard by anyone else, terrified and alone.

So this is what it takes to shake him.

“Alec I can’t–I can’t feel–” he reaches out blindly, but Alec is already taking his hands, kissing them, putting them on his face.

Source: Aught But Death, by selfinduced – Shadowhunters (TV) [Archive of Our Own]

Dear god, this fic is simply brilliant – the intense bond between Jace and Alec, even when (or rather, because) they can’t be parabatai anymore, their growing longing, the pain and angst, it left me breathless.