While talking to Princess Twilight Sparkle, a Royal Guard refers to Princess Celestia as 'Sunbutt'. He is quick to explain how he came to learn of the nickname, and suggests that Twilight should talk to Princess Luna.

So she does, whereupon she finds that Luna is all too happy to share a story with her...

Rainbow Dash has always been a great flyer, and an even better friend. But when a strange pony informs her that an ancient enemy that is older then the princesses themselves is rising from the shadows and only Rainbow Dash can stop it, she finds herself on an adventure of a lifetime. With help from this new ally, Rainbow Dash needs to find the power in herself and learn the full capability of her strength. But first...she must dive into Equestria's past and learn secrets millennia in the making. The fate of Equestria (and perhaps more than that) hangs in balance.

Inspired by Incubus' song 'Here In My Room.'

Soarin' throws a forced formal party to impress the noble ponies of Canterlot, and hates every minute of it. But when the rainbow-maned mare he's longed to see once again arrives unannounced, he'll be treated to a night he'll not soon forget.

WARNING: There are suggestive and some adult themes in this story, but it's not what I would consider a straight up 'clopfic.' I'll leave it to your own imagination when you reach that point.

Normally, Rainbow Dash doesn’t care for entertaining uptight snobs whose only concerns are about themselves and the latest fashion-but, when Rarity promises the possibility of Wonderbolts tickets, all of that is liable to change.

“Real isn’t how you are made,” said the Skin Horse. “It’s a thing that happens to you. When a child loves you for a long, long time, not just to play with, but REALLY loves you, then you become Real.” -Margery Williams, The Velveteen Rabbit

Twilight Sparkle has come up with an inspired idea for Rainbow Dash’s birthday present, the best one she can imagine. She’s made a living, breathing copy of her favorite fictional character for her. The new pony has one goal in mind, and one purpose that crowds out all others: Be the best Daring Do she can be.

A collaborative work with the incomparable Eakin.

When Pinkie Pie finds out that Luna hasn't celebrated a birthday in over a millenium, she is determined to help Luna make up for missed parties with the biggest, best Un-Birthday bash ever. But all Luna wants is quiet, personal time with ponies who care about her. Can Pinkie learn to understand what Luna needs from her little pink friend?

Featured on EQD 10/7/2013:
http://www.equestriadaily.com/2013/10/story-un-birthday-for-princess.html

Rarity normally sees Hearth's Warming Eve as a pretty simple holiday. Eat cookies, put up with family, make Sweetie Belle a nice dress. But when all of Sweetie's other presents turn out to be clothes, Rarity can't bear the disappointment in her sister's cute little eyes. After finding an old Dress Me Daisy doll in her childhood bedroom, Rarity decides to make the doll into a perfect present.

Cover Image by 1Trick:
http://1trickpone.tumblr.com/

And suddenly she was falling. Her mind was blank with shock, and she watched as the thick clouds of fog succumb her. Her pale blue wings hit against the nearly solid fog clouds. She saw a lightning streak head for the finish line and she knew that she had lost. An image of the turquoise mare in a bright Wonderbolts outfit drained into her mind, another with her in the back, a look of defeat etched on her tired face. Yellow eyes met magenta ones. "You will never be a Wonderbolt." it snapped.

No. Her wings unfurled and beat quickly through the thick air. I will be a Wonderbolt.

~****~
I changed the genre because it didn't feel like much of a "slice-of-life"

Cover image: http://kaleidoscopeheavens.deviantart.com/art/Bolt-MLP-384534049

Rainbow Dash finally has a chance to join the Wonderbolts. All she has to do is win a series of Timed Aerobatics competitions, which she knows she totally can. Much to her surprise, she does not, and she soon comes to realize it is because the other competitors are taking a drug known as "Morning Sun" which enables them to fly faster, focus more intently, and practice late into the night without getting tired. The drug, however, is banned due to its horrible side effects, and although it grants Rainbow victory, that victory comes at a price. When Twilight realizes what Rainbow is doing, can she save Rainbow Dash from herself?

Rated "Teen" for cartoon swearing, drug abuse, and violence.

Rainbow Dash always envied how much her coltfriend, the Wonderbolt, Soarin' loved to eat Applejack's home made apple pies. Swallowing her pride, she asks her best friend and rival to teach her everything she knows about making these delicious treats, so that she can at least let the stallion of her dreams appreciate her more.

Cover Art was made by: hahasauce (http://hahasauce.deviantart.com/)