Everybody's posted excellent fics, but I have to add:
my favorite PWP in this fandom, Full Body Workout http://www.crimsonquills.com/fic/avengers/index.shtml
a *delightful* Identity*revealed fic, Beneath the Armor http://www.crimsonquills.com/fic/avengers/index.shtml
a unique take on an Iron Man post-apocalyptic scenario, Repairmen (and Women) http://archiveofourown.org/works/86368
and (believe it or not), an *adorable* take on Tony turning into a cat. Always makes me smile... Momentary Paws (or, DO NOT WANT) http://talesofsuspense.net/viewstory.php?sid=237
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my favorite PWP in this fandom,
Full Body Workout
http://www.crimsonquills.com/fic/avengers/index.shtml
a *delightful* Identity*revealed fic,
Beneath the Armor
http://www.crimsonquills.com/fic/avengers/index.shtml
a unique take on an Iron Man post-apocalyptic scenario,
Repairmen (and Women)
http://archiveofourown.org/works/86368
and (believe it or not), an *adorable* take on Tony turning into a cat. Always makes me smile...
Momentary Paws (or, DO NOT WANT)
http://talesofsuspense.net/viewstory.php?sid=237