Fic: Capacities Unknown

Title: Capacities Unknown
Fandom: Thor (Movies), The Avengers (2012)
Pairing: Thor/ Loki
Rating: R
Words: 3500
Summary: Sweet jesus, no, thinks Tony. He’s used to seeing Thor and Loki steal kisses when they think no one’s looking, but this? This is something else entirely.

A/N: This sprang from a throwaway line I hadn’t intended to do anything with, but the idea of voyeur!Tony just wouldn’t let go.

(the right motivation)

Also on AO3.