Looking Back

All Reyna wanted was to be normal. But she knew she could never have that. All she had to worry about was keeping her lives separated. But when her worlds collide, she has to decide which life she wants to keep. Because this is going to be one birthday she knows she'll never forget.

(Warning: This story may contain strong language, as it includes the character of Dean Winchester. I'll try to avoid it as much as I can. However, I make no promises.)

Timelines
Doctor Who: After Season 8
Sherlock: After Season 3
Supernatural: After The Executioner's Song but before Book of the Damned (not sure specifically when)