This story is a sequel to Hard Reset

After the events of Hard Reset Twilight's life and mental well being are slowly returning to normal. Her recovery is cut short, though, when a letter arrives informing her that the time loop spell she cast is causing severe damage to space and time itself. In over her head, Twilight tries to summon anypony who will know how to fix it. The pony she gets is the last one she ever thought she would meet... and nothing like she expected him to be.

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Series TV Tropes page

Twilight and Spike grew up and did everything together since forever. But following the events of Magical Mystery Cure, Twilight is now a princess. She grew up first. Spike realizes he needs to catch up, and so makes a choice to do the same.

All the while, there is a secret, one that involves Princess Celestia, our favorite little dragon, and a certain sense of heritage.

This story is a sequel to Avocation

Life in Ponyville has been relatively quiet recently, which is somewhat surprising, given that the town's librarian tried to usurp the Equestrian throne only a few months ago. Aside from the appearance of a grumpy pegasus who set up shop as a cloudsmith, the aftermath is so unnoticeable that most ponies aren't even aware that the incident happened at all. Unfortunately, all that's about to change, thanks to the return of a certain revenge-obsessed showmare....

This is the fourth story in The Petriculture Cycle; reading the first three stories, which begin here, is highly recommended.

The artwork was provided by Page Turner, and the TV Tropes entry can be found here.

It's an offhand remark, “You're only young once,” but for Twilight Sparkle it strikes an unsettling chord. After all, everypony has to grow up; and when ponies grow up, they move away; and when they move away, they fall out of touch...

Terrified that her friends are going to drop out of her life, Twilight resolves to spend every waking moment with them. She also gives up sleeping.

This can only end well.

Dedicated to absent friends, to all our times together, and to reunions yet to come. Don't ever stop being awesome.

This is a story of how the grand spirits of Tyranny and Pride fought in ages long past, battling over the future of the world 'neath stars newly born on a nameless field in the distant north. It is a story of blank skies, of strange endeavors, and of things prehistoric. At least, that's how it starts.

The Crystal Empire makes Equestria look young, and Twilight Sparkle is about to find out just how old Celestia really is.

Celestia likes her routine. Tax reforms, grants, laws and construction projects are all a princess needs to be content.

It's just her luck that for Pinkie Pie, "content" is not nearly enough.

"Twilight isn't exactly a social pony." Could win me the Understatement of the Year award.

However, what most ponies don't know is that Octavia, a high-class socialite, isn't exactly much better herself, despite countless rumours about a liason between her and a certain DJ.

Now, drawn back to the upper-classes that she tried so desperately to get away from, can Twilight Sparkle find solace, and companionship, from one of the very socialite ponies of her past that she is so desperate to escape?

Rarity discovers an old tradition involving the exchange of felt dolls as a sign of affection. This sparks a brilliant plan to play matchmaker with her friends, and between herself and Twilight.

But brilliant plans never go as expected, do they?

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Cover art by Acceleron
Chapter art by Ratofdrawn, Sketchyjackie, Dunnstar and fatalerror328!

As a big storm approaches Ponyville, Pumpkin and Pound Cake steal through the cellar of Sugar Cube Corner, on a mission to claim the cookies and milk promised them by the Ancient Ones.

Awake and alone, Applejack will find a way to survive.

And here's a TV Tropes page, if you're into that kind of thing.