I might update this post later with additional stories. Well, here you go, I hope you find something that you enjoy! (Psst: Isobel Q. Rowan is my current favorite author if you want to start with her stories! I'll mark her stories with a
for easy finding 
)EDIT- There's an amazing author with really good short stories-- but she has too many for me to link here without going insane. Her website is http://www.digital-whispers.com/ and you can find the lesbian stories by clicking "Yuri" on the navigation menu. She also has a completed novel there, as well as an incomplete one.
These are in no particular order.
'Why I Don't Like Math' by find-nowhere
A gay guy, two straight chicks, and a lesbian...it is a thing of wonder and glory.
http://www.fictionpress.com/s/1924352/16/Why_I_Dont_Like_Math
'Hysteresis' by find-nowhere
“Everyone thinks that we’re all about the lesbian sex everywhere we go.”
http://www.fictionpress.com/s/1321597/1/Hysteresis
'The Odd Couple' by BlackRuby
Pru Ashton and Harper Levine were partnered for a simple family project, now new feelings are getting tangled w/ this small project and all lifes other problems...
http://www.fictionpress.com/s/1342073/1/The_Odd_Couple
'Fire on Babylon' by Jessica Pryce
Lisa was stuck in a wheelchair, the result of a drunk trucker's mistake. Four years later, her best friend's little sister develops a crush. On her. But she's the only one who's shown an interest in the near paraplegic college student. Now what?
http://www.fictionpress.com/s/2365205/1/Fire_on_Babylon
'Meeting the 'Rents' by ghostlygeorge
Story of Deslina and her girlfriend who shes been seeing for 5 years. They're going to announce to her parents that they're getting married next year.
http://www.fictionpress.com/s/2315793/1/Meeting_the_Rents
'Soul Mate' by Ladako
Christine is a sweet, violent, hyper singer. Nicole is a depressed, silent author. They meet in high school and fall in love but have trouble with being accepted. They than learn the true meaning of the word Soul Mate.
http://www.fictionpress.com/s/1694301/1/Soul_Mate
'Don't let them know about us' by Perverse
A real life story of an incendiary love.
http://www.fictionpress.com/s/2296568/1/Dont_let_them_know_about_us
'Don't let us know' by Perverse
Sequel to Don't Let Them Know About Us. Welcome to an incendiary real love story. We thought we had gone through the worst, but then we really entered the gates of violent vendetta, bleeding kisses and burning warnings.
http://www.fictionpress.com/s/2552515/1/Dont_let_us_know
Amor Prohibido by naturalbornpessimist
Love is a road not easily travelled.
http://www.fictionpress.com/s/2496836/1/Amor_Prohibido
Sonnets in My Gym Bag by Isobel Q. Rowan Sparks fly when I fall for my Mother's coworker. This is a tale of lesbian love and Mother:daughter angst. Oh, and did I mention Mother can't stand my beloved.
http://www.fictionpress.com/s/2458774/1/Sonnets_in_My_Gym_Bag
Amor Vincit Omnia by Isobel Q. RowanA secret love affair between a Roman soldier and a Celtic healer blossoms as they flee a Roman army. Can their love survive war, barbarian raids, exposure and prejudice?
http://www.fictionpress.com/s/2509660/1/Amor_Vincit_Omnia
Fistful of Daisies by Isobel Q. RowanA lesbian, spaghetti western version of Taming of the Shrew. A photographer finds herself trapped on a remote, inhospitable planet and enslaved to a local Sheriff. Her pilot disappears like all of the men there.
http://www.fictionpress.com/s/2467959/1/Fistful_of_Daisies
Wedding Surprise by Isobel Q. RowanA twenty-something woman gets a big surprise when she meets the family of her sister's future husband. It seems you can't always leave a one-night stand behind. One shot.
http://www.fictionpress.com/s/2725690/1/Wedding_Surprise
Fur and Feathers by briannathewriter
Sasha did not have any problems in life beyond dealing with her pack mates' tempers. But what happens when she suddenly becomes bonded to a sworn enemy through the rigid honor codes that plague both of them?
http://www.fictionpress.com/s/2413848/1/Fur_and_Feathers
Not So Happily Ever After by briannathewriter
Zorana is your average knight in disguise sent away with the King's timid son to find a princess kidnapped by a very articulate dragon. At least that's what she thinks is going on. Not everything is as it seems in this fairy tale!
http://www.fictionpress.com/s/2341829/1/Not_so_Happily_Ever_After
It All Seemed So Easy by R.J Cleverley
Emily had the perfect life until one small action sent it on a downward spiral. A story of revenge, lust, loss, discovering who you really are and where you should be.
http://www.fictionpress.com/s/2391439/1/It_All_Seemed_So_Easy
Pencilled in for Never by An Insomniacs Rebellion
Harmony's Father dies, she is left to deal with a sick brother and alcoholic Mom. A relationship with Rachel begins to smooth some rough edges, but her life is still very unstable.
http://www.fictionpress.com/s/2105625/1/Pencilled_in_for_Never
Imagine Me and You by Mrs. Dalloway's flowers
A closeted art teacher falls for the single mother of a homophobic student.
http://www.fictionpress.com/s/2479624/1/Imagine_Me_and_You
I'm happy to help.