Have you raed A Courtship by nev_longbottom? (Also in podfic form by sisi_rambles. Summary: Loki thinks Sif is going to kill him. Sif thinks Loki understands what she's doing. Thor doesn't get it.
Which is basically Sif courts Loki by slaying beasts for him and defeating his enemies. Plkus, I love the gender role reversal so much! (With Loki practicing magic and not relishing physical fights like a proper Asgardian should and Sif embodying every inch that -usually masculine- warrior role. Sooo interesting.)
(And no, it does not require great prior canon knowledge... *g*)