Newest recs added to the end of the list.

Title:  Authors Have Parties, Too?, Bad Luck for Bad Luck?, Commitment, C Between D Lines
Author:  Aja
Genre:  Drama/Romance
Pairings:  Yuki/Shuichi, Tatsuha/Ryuichi
Status:  All Complete
Spoilers:  For the whole series
Summary:

Authors Have Parties, Too?

Abc 1. Eiri gets roped into attending his publishers' 25th anniversary party. Trouble brews over a bad Bad Luck biography. (Set after series.)

Bad Luck for Bad Luck?

Abc 2. Shuichi is gifted with a tarot reading. Will it be the cause of bad luck? Shuichi x Eiri. (Set after series; spoilers abound.)

Commitment

Abc 3. Eiri has decided to commit to Shuichi in a permanent way.

C Between D Lines

Abc 4. One-shot honeymoon piece that fits between "Commitment" and "Don't Eat the Daisies".

Notes:

These stories are all part of a continuing storyline, so I've listed them together and in order.  Also, note that there are other stories that follow the ones I listed; I just haven't read them yet. ^^;;  Hence, no rec for them yet.

There were several things that I liked about these stories...The characters were portrayed nicely, we get some Uesugi family interaction, and there are some really interesting cultural bits.  Actually, quite a few of them. ^^  The first story felt a little rough; in my opinion, the later ones are better.  But I still liked it well enough. ^^

******

Title:  Honey Bunny
Author:  Anahita
Genre:  Romance
Pairings:  Yuki/Shuichi, Tatsuha/Ryuichi
Status:  Complete
Spoilers:  None
Summary:

Ryuichi has lost someone/something precious.

Notes:

Ryuichi's just adorable, sometimes....and hence, so is this fic.  Just a short little fluffy one shot.

******

Title:  The First Kiss
Author:  HRT
Genre:  Drama/Romance
Pairings:  Tatsuha/Ryuichi
Status:  Complete
Spoilers:  None
Summary:

This is the story of how Tatsuha and Ryuichi first met, and their first kiss.  Three chapters.

Notes:

Cute little Ryuichi-centric piece.  It was neat seeing something written from his POV.

******

Title:  Wingardium Leviosa, E=mc^2, and My Suite-Valentine
Author:  Talya Firedancer
Genre:  Humor/Romance
Pairings:  Yuki/Shuichi, Tatsuha/Ryuichi
Status:  Complete, Complete, Complete
Spoilers:  None
Summary:

Wingardium Leviosa

Track 15. Tatsuha risks death (and his older brother) to meet his idol; in the meantime, Yuki questions Shuuichi's taste in reading material and sparks a conflict.

E=mc^2

Track 16. Shuuichi deals with the fallout of Yuki's announcement that he's going to quit writing. Meanwhile, Yuki considers his options. Woefully short compared to the other two.

My Suite-Valentine

Track 17. Shuuichi tries to cook up something special and fails; the release date of Yuki's new novel is announced and the revelation of its subject causes tension between he and Shuuichi.

Notes:

Oh, wow.  This reads just like an episode of the show.  XD  Wonderful!

******

Title:  A Lonely Miracle
Author:  R.C. McLachlan
Genre:  Drama/Romance
Pairings:  Tatsuha/Ryuichi
Status:  Complete
Spoilers:  None
Summary:

Lyrics are sent to Sakuma Ryuichi, unsigned... however, when he sings them at a concert, all is revealed.

Notes:

Very, very fluffy.  A bit too fluffy in places, to be honest.  But an interesting concept.

******

Title:  Won't You Be Mine?
Author:  Mina Lightstar
Genre:  Romance
Pairings:  Yuki/Shuichi, Tatsuha/Ryuichi
Status:  Complete
Spoilers:  None
Summary:

Tatsuha is surprised, Shuichi tries cooking up something special, and Touma and Mika are happily married, after all.

Notes:

I like Yuki's comments about his 'gesture', and the whole Tatsuha/Ryuichi segment.

******

Title:  On the Outside
Author:  Kirachu
Genre:  Romance/Humor
Pairings:  Tatsuha/Ryuichi
Status:  WIP
Spoilers:  For Yuki's past
Summary:

An obsession develops into something more.

Notes:

Wow.  I love this fic.  The narration captures Tatsuha beautifully!  And Ryuichi; so nice.  My only complaint is that it's been ages since it's been updated! D=

******

Title:  Third Party
Author:  Avarice
Genre:  Humor/Romance
Pairings:  Tatsuha/Ryuichi
Status:  Complete
Spoilers:  None
Summary:

Sometimes when Tatsuha gets home, he encounters a bit of resistance.

Notes:

This is just cute!

******

Title:  Risk
Author:  NemKess
Genre:  Romance/Humor
Pairings:  Tatsuha/Ryuichi
Status:  Complete
Spoilers:  None
Summary:

"Is there a line that I could write/that's sad enough to make you cry?"

Notes:

I love the image of Ryuichi and Tatsuha with the guitar.  <3

******

Title:  Nagareboshi
Author:  Yui Miyamoto
Genre:  Romance
Pairings:  Tatsuha/Ryuichi
Status:  Complete
Spoilers:  None
Summary:

Tatsuha finally meets his idol and this fic explores how deep his feelings are for that idol.

Notes:

Now, I'm kinda iffy on this fic.  I really liked some bits (the ledge, the song lyrics, Ryuichi's declaration on stage), but truly, the relationship felt way rushed.  If it had been stretched out more, it would have been better.  But, given how little decent Tatsuha/Ryuichi fic I've found, I wanted to rec this one; you can decide for yourself if it's worth it or not.

******

Title:  All I Want for Christmas Is You
Author:  Psycho_gurl
Genre:  Romance
Pairings:  Tatsuha/Ryuichi
Status:  Complete
Spoilers:  None
Summary:

Ryuichi's on tour for Christmas and wants his Tatsuha there with him.

Notes:

Oh, this is so cute!  I love the charm bracelet thing; and Ryuichi's characterization in general.  <3

*Squee*  This is just lovely.  <3