Love changes relationships, though not to the point where they are no longer recognisable. Twilight loves to go flying with her marefriend, but sometimes... sometimes her marefriend can still be her teacher.

With the forming to the Ponyville Royal Guard, Princess Twilight Sparkle personally asked Flash Sentry to be the Captain of the Guard. But what they really need to work on is their bumps. With this in mind, Flash Sentry has plans for the Princess of Friendship. Personal plans.

This ship is based on the Kilalaverse.
Cover art credit goes to kilala97

Please don't yell at me for doing this. I actually like FlashLight.

Few U-Boat captains were as famous, or as feared, as Otto Kretschmer, nicknamed "Silent Otto." But, when one of the Reich's leading scientist's experiment goes wrong, how did Captain Kretschmer deal with his new surroundings... and the colorful, talking ponies he found there?
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In equestria Otto couldn't have arrived at a better time. for equestria has the possibility of going to war with a new empire over seas. Something Otto has experience in.

THIS ALL TAKES PLACE AFTER THE FIGHT WITH TIREK.
(Also I'll be editing the tags as I go)
(If you see any errors please let me know in the comments)

Earth has been conquered and for hundreds of years humanity has been under the hooves of giant ponies, its once great countries and empires reduced to mere vassals, required regularly to give their citizens to the ponies. Melissa, age 14, and Joshua, age 11, are taken from their parents to magical land called Equestria where humans are treated at best as little servants, or pets to be taken care of, at worst as disposable toys.

Pre-reader: SomeRandomMinion

(I realize that Star Wars crossovers aren't exactly new, though this was just an idea I had on a whim. I might continue it, depends if you guys want me to or not.)

In the magical land of Equestria, two alicorn sisters raise the Sun and the Moon every day to give the world a night and day cycle, basic for the survival of life. There are also two alicorns who rule over two very core aspects of life and harmony itself. Those are Love and Friendship. While not as ancient as the two sisters, all princesses are essential to the world's balance.
This balance is also sustained by the hard-working ponies, who make the seasons change and manage the weather to fit their needs, so everypony has enough food and water, and every animal is also attended to assure that any of them are caught in the changes of seasons.

But what about the planet itself? What about Mother Nature?
This is the question that Gaia asks when she arrives to this foreign world. After so much work her son persuaded her to take a long vacation in Equestria, saying that she needed one and assuring her that he would be in charge now, and she must take a break. But what can a several billion-year old alicorn possibly do to pass her time in this land?

(SimEarth/MLP Crossover)
(Timelife of Gaia's life 'till the start of the story)

Fluttershy loves all animals like a mother loves her children. But one day, she finds an egg that hatches to reveal a baby changeling. Despite what happened during the royal wedding, Fluttershy decides to raise the little changeling as her own. But will her friends be as accepting as she is?

This story is a sequel to Proud Mother of a... Changeling?

After Twilight receives a letter saying that Queen Chrysalis is the guest of honor in the Crystal Empire's First Grand Banquet, she becomes suspicious and attends in order to thwart any plans the changelings may be hatching.

This story is a sequel to Growing Pains

After a magical mishap involving a filly, magical empowerment, and an aging spell, Twilight finds herself stuck with a rather large problem.

When Princess Celestia shows up to help her out however, it becomes apparent that Twilight isn't the only one affected by her new looks. Which in turn brings back feelings she had long thought forgotten.

Reading the prequel to this story is not required though it does help.

Enjoy.

For Sweetie Belle, having a babysitter is not that big a problem, especially when her babysitter is the element of magic herself. When Twilight devises a spell to help her with her apparent problems, however, both of them will have to learn a lesson that won't soon be forgotten.

Now has a sequel called Sizable Differences

Enjoy.