The plan had been a simple one, find her husband and reconcile, but things didn't turn out exactly as Sarah had expected.

For Alex Winchester, normal has never been in the equation. Mute since the nursery fire, she grew up on the road chasing ghosts with her brothers and father. When her voice is inexplicably restored and the angel Castiel appears claiming to be her guardian, both of their lives change forever in ways that Heaven and Earth never expected. Castiel/OFC - sisfic - S4-S9. AU.

"What I'm trying to say," he said, his voice hoarse, "-is that if I were to be charged with protecting you, things could…" His cheek brushed against hers for an instant, and she found the sensation more sensual than she could have possibly imagined. "Could what?" she whispered. "Get complicated," he muttered. "Very complicated." A woman from Billy's past shows up in Nassau.

The girl shouldn't have been his problem—but that's how it was turning out, and now he was starting to feel responsible for her future. (Set around the end of S2, in the aftermath of Charlestown under attack, with some differences in order to focus on the characters of Billy and Abigail.)

The title comes from the Oh Wonder song of the same name about lost love. Dean has recently ended things with Black Siren and mourns his Laurel. Then Laurel miraculously returns, and with a life-changing surprise for the both of them, but is she the same? Can she be? Part 6 of the Bulletproof verse.