I decided I needed a masterpost of my smut fics with Jack/whoever (as of February 14, 2018). There are a lot, so separating by fandom:
Torchwood
Ready For You – Jack/Ianto
Office Fetish – Jack/Ianto
Good Thing the Desk is Sturdy – Jack/Ianto
Bruises on the Heart – Jack/Ianto
Light in the Dark – Jack/Ianto
Superwood
At The Ball – Jack/Castiel
Unexpected Angel – Jack/Castiel (omegaverse)
Déardaoin – Jack/Castiel (merhums)
Second Verse, Same as the First – Jack/Sam Winchester
Must be Christmas – Jack/Castiel/Castiel
Resting Place – Jack/Castiel
Respite – Jack/Sam Winchester
Wake Me – Jack/Castiel
Immortal Wings – Jack/Castiel
Two Captains and an Angel – Jack/Castiel/John Hart
Memory – Jack/Castiel
The Sound of Wings – Jack/Castiel
Do Not Sacrifice for Us – Jack/Sam Winchester/Castiel
One Night – Jack/Sam Winchester
Sanctuary – Jack/Sam Winchester
I’ll Keep Watch – Jack/Castiel
After Midnight – Jack/Sam Winchester
Bound – Jack/Sam Winchester
A Moment’s Touch – Jack/Castiel
Ghosts That We Knew – Jack/Castiel
New Year’s Eve – Jack/Castiel/Sam Winchester
4173 – Jack/Castiel
Always a Pleasure – Jack/Sam Winchester
Christmas Eve 1945 – Jack/Castiel
Save A Bull, Ride a Cowboy – all the pairings
Midnight Rodeo – Jack/Castiel
Sherlock
War Doesn’t Stop for a Flirt – Jack/John Watson
In Kandahar – Jack/John Watson
Mycroft Brings the Best Presents – Jack/Mycroft/Greg
Blue Eyes and Long Coats – Jack/Ianto/Sherlock/John Watson
The American and the Cop – Jack/Lestrade
Summoned – Jack/Mycroft Holmes
Come Get What You Want – Jack/Sherlock/John Watson
You Don’t Belong Here Either – Jack/Sherlock
Doctor Who
May I Have This Dance? – Jack/Ten
A Braid Takes Three – Jack/Nine/Rose
Hands Entwined – Jack/Nine
The Big Game Hunter – Jack/Riddell
Miscellaneous
It Had to Happen Once – Jack/Loki
Time Crunch – Jack/Jack
Flyboy – Jack/Martin Crieff
Local Wildlife – Jack/Tentacle critter
Captain Meets Captain – Jack/Malcom Reynolds
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THAT is a lot of porn. Lol
And clearly I like superwood (thanks awabubbles and jazzforthecaptain)
Also if you’re interested, this is every fic I have with Jack, not just the smut ones (as of right now there are 78)