My Lovable Gangster by pipoomica [L.Joe + OC]
L.Joe's Crazy Plan In Ruining His B*tch Ex-Girlfriend by lovelyme23 [L.Joe + OC] ; yeah, the title is long lol XD
You And Me: We're Dorm Buddies by heymondays [L.Joe, L + OC]
My Fat Me, Myself and L by cuppieeee [L + OC]
Dreaming When Awake by milkykiss [L + OC]
3 Reasons To Date A Jerk by -winter [L + OC]
The Dull One by Goddess [L + OC]
Baby, Maybe by -xsweetcheeks [L + OC] ; i actually don't know if she's gonna finish this ><
Therapy With Kim Jonghyun by Patzmelody01 [Jonghyun + OC]
It Started With A Kiss by hello_gikwang [L + OC] ; Luhan is a minor ...
Dear Friend by heymondays [L + OC]
River Flows In You - xginachoi [L.Joe + OC]
Destiny by rawrwithlove [L.Joe, L + OC]
Hearing Your Voice by Gemslover [L.Joe + OC] ; it's a oneshot
Unexpectedly Queen by starlightte [L + OC]
Falling In Love With A Gangster by chocostars [L.Joe, L + OC]
I'm His Maid by HatrednAshes [L + OC] ; lol
Baby You ... by kay0mega [L.Joe + OC] ; not sure if it's but it's mild
3 Identities Of My Mysterious Wife by Goddess [L.Joe + OC] ; Kevin as a side character
Spotlight by kpopscenes [L.Joe, L + You] ; yeah, it's a YOU story, i found it on tumblr while searching for some l.joe scenarios lol
Wished For A Boyfriend, Stuck With A Gangster by -winter [L.Joe + OC]
Counting Days by missuslee [L.Joe + OC]
Bird Cage by missuslee [L.Joe + OC] ; & oneshot
She's Into , So Call Me Gay by wickedaika [Jonghyun + OC]
Pretending by mijuki [Jonghyun + OC]
This Stupid Marriage by lannyx3 [L.Joe + OC]
His Cactus, Her Love by dulcee [L + OC]
To You by missaleyh [L.Joe + You] ; oneshot
My Secret Nerdy Boyfriend by muzikmaster [L + OC]
That Player by LokiCraze123 [L.Joe + OC] ;

So this is what I have in my subscriptions and bookmarks C:
Well actually, there's more than that lol but i think this is enough XD
Did you also try any of dbskgirl4ever's stories?

I, like, only read from Pataco_95. LOL.