Iron Man Fic
Disclaimer: This list is neither a comprehensive nor complete listing of all the entertaining and/or awesome fic I've read out there. Conspicuously missing is the hot man-on-man action including but not limited to Tony/Rhodey and Tony/Steve, as well as some really good crack I can't find at the moment. Please feel free to comment on glaring omissions.
The Starkster
The Priming Game by amonitrate
Get Your Gun, I'm Done by rocknload **Hulk crossover post-movie
Five Rumors About Tony Stark That Aren’t (Entirely) True by usually-a-witch
A Man of the World. by quigonejinn **AU
Opaque by odi_amo
Real Friends Help You Get Naked by hackthis
Fifty Lifetimes by quigonejinn **AU
Miss Monday by slicedpigeon
Grace by quigonejinn
The Kids Aren't All Right by samdonne
Your Fixed Point. by quigonejinn **AU
The Evolution of Pepper
1. In the beginning...
Interview Process, by jamaillith
His Girl Friday. Or Saturday. Maybe Sunday. by hackthis
How Tony Possibly Met Pepper, by cruelest_month
2. Duties of a billionaire's assistant...
Miscellaneous is Always the Largest Category by splash_the_cat
Sotto Voce by svilleficrecs
Four Times Pepper Considered Quitting and the One Time She Did by seren-ccd
Four Times Pepper Potts Saved the World (and One Time She Didn't) by th-esaurus
That Kind of Crazy by neonhummingbird **West Wing crossover! With Donna!
Well Heeled by amonitrate
Hazard Pay by neonhummingbird
3. Easing into the Tony/Pepper pool...
Proof by gabby-silang
A Life in Phases by sound_of_bells
Three Men and a Lady (and Her Boss) by hackthis
Wish You Were Here by splash_the_cat
Drink Deep by dafnap
And Innocently, Sideways, the Way We Always Fall by splash_the_cat
A Proposal. Maybe. by seren-ccd
The Day Pepper Potts Got Fired by lovethesnark
Friday Night by holdouttrout
Teh Porn
A Small and 100% Innocent Token of Gratitude by svilleficrecs
Reconciliation by thelma_lou
Selfish by melanieriot
Holy Ghost and All by th_esaurus
the heave and the hue of the woman on fire by aj
Successful Secrets of the Sexual Kind by atrata
Harold "Happy" Hogan
As Luck Would Have It by odi_amo
Driving Mr. Stark by stargatedragon
Smiles by zionangel
Crossovers
Method to Madness by vzg **Tropic Thunder crossover
The Complications of Mechanics by elsi-dissapear **Doctor Who crossover
Supply and Demand by catslash **Doctor Who crossover
Business As Usual by gypsyjr **Doctor Who crossover
CRAAAAAAAAAAAAAAACK
Stark Industries, Naked by cincoflex
Follow Your Shame by atrata
The Value of Secrets by mayatawi
Turning Your Orbit Around by atrata
Five Times Obadiah Stane Cloned Tony Stark by quigonejinn and jamaillith
The Furthering Adventures of Rocky: Iron Dog by aj, besyd, and splash_the_cat
Benefit Limitation Agreement by quigonejinn
Snips & Snails & Puppy Dog Tails by hackthis
The Starkster
The Priming Game by amonitrate
Get Your Gun, I'm Done by rocknload **Hulk crossover post-movie
Five Rumors About Tony Stark That Aren’t (Entirely) True by usually-a-witch
A Man of the World. by quigonejinn **AU
Opaque by odi_amo
Real Friends Help You Get Naked by hackthis
Fifty Lifetimes by quigonejinn **AU
Miss Monday by slicedpigeon
Grace by quigonejinn
The Kids Aren't All Right by samdonne
Your Fixed Point. by quigonejinn **AU
The Evolution of Pepper
1. In the beginning...
Interview Process, by jamaillith
His Girl Friday. Or Saturday. Maybe Sunday. by hackthis
How Tony Possibly Met Pepper, by cruelest_month
2. Duties of a billionaire's assistant...
Miscellaneous is Always the Largest Category by splash_the_cat
Sotto Voce by svilleficrecs
Four Times Pepper Considered Quitting and the One Time She Did by seren-ccd
Four Times Pepper Potts Saved the World (and One Time She Didn't) by th-esaurus
That Kind of Crazy by neonhummingbird **West Wing crossover! With Donna!
Well Heeled by amonitrate
Hazard Pay by neonhummingbird
3. Easing into the Tony/Pepper pool...
Proof by gabby-silang
A Life in Phases by sound_of_bells
Three Men and a Lady (and Her Boss) by hackthis
Wish You Were Here by splash_the_cat
Drink Deep by dafnap
And Innocently, Sideways, the Way We Always Fall by splash_the_cat
A Proposal. Maybe. by seren-ccd
The Day Pepper Potts Got Fired by lovethesnark
Friday Night by holdouttrout
Teh Porn
A Small and 100% Innocent Token of Gratitude by svilleficrecs
Reconciliation by thelma_lou
Selfish by melanieriot
Holy Ghost and All by th_esaurus
the heave and the hue of the woman on fire by aj
Successful Secrets of the Sexual Kind by atrata
Harold "Happy" Hogan
As Luck Would Have It by odi_amo
Driving Mr. Stark by stargatedragon
Smiles by zionangel
Crossovers
Method to Madness by vzg **Tropic Thunder crossover
The Complications of Mechanics by elsi-dissapear **Doctor Who crossover
Supply and Demand by catslash **Doctor Who crossover
Business As Usual by gypsyjr **Doctor Who crossover
CRAAAAAAAAAAAAAAACK
Stark Industries, Naked by cincoflex
Follow Your Shame by atrata
The Value of Secrets by mayatawi
Turning Your Orbit Around by atrata
Five Times Obadiah Stane Cloned Tony Stark by quigonejinn and jamaillith
The Furthering Adventures of Rocky: Iron Dog by aj, besyd, and splash_the_cat
Benefit Limitation Agreement by quigonejinn
Snips & Snails & Puppy Dog Tails by hackthis