In which I give the old reach around

I've been wanting to discuss this for ages and now - with the recent influx of Merlin fans on my flist - seems like as good a time as any. So, what are your all time favourite Merlin-related fics? Maybe they're fandom classics, maybe they're not, but you've read them over and over and they're the first thing you rec because you want people to love them as much as you do.

I unashamedly fangirl:

At Our Best When It's From the Hips by derryere (M/A, NC-17, ~13k)

Your Movements Are Irregular (But My Gravity Is Constant) by lemniciate (B/C, PG-13, ~30k)

Bradley James' Guide to Surviving a Zombie Apocalypse: The Mall Edition by giselleslash (B/C, R, ~3300)

Communications In Binary by justthismorning (M/A, PG, ~37k)

Soundtrack to the Apocalypse by phantomjam (M/A, NC-17, ~7700)

The Rise and Fall of the Broman Empire by rayslady (PG-13, Gwaine, background M/A and Gwen/Lancelot)

Fools Of Us All by adelagia (M/A, NC-17, ~11k)

Penance by wholly_crepe (B/C, NC-17, ~6000)