Equestria rejoices as Princess Twilight defeats evil, a castle ascends from the ruins of the Golden Oaks Library, and magical rainbows of friendship billow across the land. But there is grief even in the midst of joy: the Princess laments the loss of her beloved books, and a party stallion mourns a small rubber chicken.

Takes place after Equestria Games: The Cheese Course, and the season 4 finale. CheesePie; part of the same verse/continuity beginning with Swear on Camembert.

Cover art is Filly On The Ball, by Shiro-Gi. Used by permission.
This fic is 100% approved by Twilight's Library.

NOW COMPLETE.

At last Pinkie Pie is getting her chance to run the Canterlot Cake Festival, but, to her annoyance, she isn’t permitted to run it on her own. None of her four best friends can be her assistant, so she’s forced to take on Cheese Sandwich, a geeky accordion-playing new student, who is both very strange and very familiar. Cupcake exploits, explosions, aunts, obscure branches of magic, swing dancing, and other typical high school hijinks ensue.

A Pinkie Pie/Cheese Sandwich story, set in the Equestria Girls universe. EG canon-compliant up to Rainbow Rocks.

CheesePie. Hoof to heart, there will not be any other ships that you do not bring yourself.

Art is a commission from Quere.

100% approved by Twilight's Library.

The Rainboom happens as it should, and a few certain fillies earn their cutie marks because of it. Except little Pinkamena Diane Pie, who went inside before she could witness it. Thus, she never left the rock farm.

That meant she wasn't in Ponyville to throw that party that inspired a runaway colt named Cheese Sandwich.

However, the two end up meeting in adulthood, and the broke wanderer Cheese takes a job at the rock farm, and works alongside the grumpy Pinkamena and her family.

My take on an AU, created upon realizing that Cheese Sandwich was indirectly affected by the Sonic Rainboom. And in case you're wondering, the whole eternal night thing goes the same way as the show (except a different mare--whoever you imagine--wields the Element of Laughter).

100% approved and has been featured by Twilight's Library! (6/2/14--6/9/14)
Also, here's a TV Tropes page.

Cover art by me.

After throwing the party of a lifetime, Cheese can't stop thinking about Pinkie Pie. Is it possible she can't stop thinking about him too? He hasn't thrown a party since Rainbow's birth-iversary. After realizing he can't throw a party on his own, he asks for Pinkie's help. Is it possible that there is something between the two?

Credit for the cover goes to Nekomash. Thanks :)
http://nekomash.deviantart.com/art/Party-love-431108237

It's a month and a half before New Years Eve, and Pinkie Pie is planning a party for all of her classmates. Only, she needs help. Since her friends are occupied, who can help her?

None other than Cheese Sandwich.

With Pinkie Pie's birthday coming up, her friends find themselves facing a bit of a dilemma about how to celebrate it. Fortunately, Cheese Sandwich just so happens to come back to town, and he's more than willing to take over the party planning.

Pinkie is quite thrilled to know her party pal is back in town, but soon she can't help but notice that Cheese seems to be acting rather strange around her.

Will Pinkie be able to figure out why Cheese seems to be acting so odd? And what's the real reason behind Cheese's return to Ponyville?

Cheese Sandwich and Pinkie Pie are hired to throw an anniversary party in Paris for the Mayor and her husband. Unfortunately, a band of thieves also has their sights set on the party, with every intention of crashing it.