Hark! A Headcanon! or: Deleted scenes from Agents of S.H.I.E.L.D.
INT. BANQUET HALL — DAY (ASGARD)
The Lady Sif polishes her double-edged sword, after having parried away a band of unwelcome party-crashers.
Agent May: So who else is on the guest list for this, uh… “Kick-Posterior Ladies’ Banquet”…?
Sif: Only your finest Midgardian lady warriors! There is Darcy the Lightning Rod Maiden, Lady Jane, Woman of Science, Natasha Romanoff, Protector of Midgard, and Pepper Potts, Guardian of the Man of Iron.
Agent May: (motioning to a squirming, shackled Loki dangling from a rafter) What’s he for?
Sif: Oh, he’s the entertainment. “Pin the Slap on the Treacherous Bastard-Face”.