Twilight Sparkle finds an ancient star chart which shows the location of another world, Earth, as well as a powerful teleportation spell capable of interstellar travel. Princess Celestia allows Twilight to go to the other world for exploration. However, due to the Changeling invasion during the royal wedding, the negative energies it produced also frees Discord from his stone prison, who also decides that Earth should be his new playground. Meanwhile the Autobots continue to defend Earth from Megatron, and his Decepticons; ignorant that a new player is about to release chaos upon the world. And Megatron is not about to let another would-be conqueror steal his prize. Equestria also has it's problems when Queen Chrysalis returns to Canterlot, bent on usurping Celestia and Luna.
Twilight Sparkle, and Optimus Prime must save two worlds from three powerful villains.

(This takes place at some point during the 20 year time frame between The Transformers G1 series Season 2 and Transformers: The Movie; and 1 week after the Royal Wedding in Canterlot.)

Once, Ford was just a human who led a boring and lonely life. But suddenly, his life is turned upside down as a mysterious golden light not only transported him to the magical world of Equestria, but has also transformed him into a Pegasus Pony without a Cutie Mark! Despite how much of a fan he is of MLP:FIM, he can't help but feel concern on what kind of consequences his presence might bring on account of his knowledge of a fictional cartoon show.

Now, under the identity of "Ford Mustang", he must face many trials ahead of him. Will he be able to blend in with the rest of the pony community? Will he ever be able to earn his Cutie Mark? Can he make it back home in time before the ponies learn the truth about him? And what happens when he starts to fall in love with a certain cyan Pegasus with the spectrum-colored mane? Find out on the incredible journey of Ford Mustang!

This story is a sequel to The Arrival of Ford Mustang

It's been over a year since the Arrival of Ford Mustang, a former human being from Earth, now a full-fledged Pegasus in Ponyville, and things have been going really well with him and Rainbow Dash ever since they became a couple nearly a year ago. With their one-year anniversary coming up, Ford decides it's time to pop the question and ask Rainbow for her hoof in marriage. However, an unknown force of darkness rises from the shadowy depths of the earth and achieves his ultimate plan that can not only seal the fate of Equestria, but for the rest of the world as well.

Now, without the aid of the Princesses and the Elements of Harmony, it's up to Ford Mustang and his elderly dragon friend, Hindel, to set things right and stop this monstrous tyrant once and for all. But is Ford up to the daunting task at hand? What kind of allies will he run into along the way? And what is Hindel's connection with the vengeful pony from long ago? Stay tuned for the continuing adventures of Ford Mustang!

This story is a sequel to The Epic Quest of Ford Mustang

Shortly after their wedding, Ford Mustang and his wife, Rainbow Dash, have already made plans to have their first foal together. With each passing month, they go through the usual joys and struggles from starting their own family as they cherish what they have from their friends and family. But as his beautiful, blue angel goes through her pregnancy, Ford starts to receive terrible visions that may determine the ultimate outcome of Rainbow Dash's fate. Mustang has gone through many challenges in his previous adventure, but can he find a way to change her fate in time or will he have to accept the inevitable in the end? Don't miss out on the final chapters that will ultimately conclude the Trilogy of Ford Mustang!

This side-story takes place in-between "The Arrival of Ford Mustang" and "The Epic Quest of Ford Mustang."

Several months have passed since his arrival to Ponyville, and not only is Ford Mustang staying there permanently as a full-fledged Pegasi, but he is also in a steady relationship with Rainbow Dash, who is now a rising star as a member of her dream team, the Wonderbolts. As of lately, Ford is looking forward to spend some quality time with his beautiful, blue angel during her big break this Hearth's Warming Eve.

But with the holiday season fast-approaching, he will have to come up with a great gift for her. The question is will his present meet up to her expectations on their very first Hearth's Warming Eve together? And what kind of surprises does Rainbow have in stored for him? Find out in this holiday special where they discover the joys of giving and receiving!

[First-Person Perspective/One-Shot/Holiday Special]

Long ago, the Seraphim granted power to the Doom Slayer that he might conquer the forces of Hell. The Doom Slayer has won, Hell lies defeated, and now he returns to the Seraphim's holy realm. His mission is not over though, he has promises to fulfill, rewards to collect, and as always, evil to defeat. Let those who would harm this sacred land tremble, for the Guardian of Equestria, has returned!

(This story now has two sequels: Legion and the novella Doom Slayer.)

When the girls share embarassing stories about each other, Flash cant help but chime in with his own of Sunset.

Multiple talks the girls have about different things. Subject varies from chapter to chapter. Suggestions welcomed!

Featured 3/11/18! This was a pleasant surprise after all that I've been through. Thank you!

Ever since they decided to give dating another shot, Sunset Shimmer and Flash Sentry have been doing well together. But Christmas Eve is here and with a night together looming, Sunset is facing some hesitations regarding the physical aspect of their relationship. She turns to her friends for help, but maybe the answer is one that only she can provide.

Pre-read by Albinocorn, MythrilMoth, and RTStephen

This story is a sequel to Celestia’s Best Day Ever

Human Twilight’s pet dog Spike wasn’t one of the passengers from the cruise vacation since he wanted to stay home but when he heard from Twilight that he met another Spike from a different world, he was jealous. Out of all the times he make unboxing Haytube videos in Twilight’s room, this should’ve been the opportunity to give up on that and join Twilight. Luckily for him, Twilight gets to go Equestria to meet her counterpart again just for today and is willing to take him with her. However with a chance to meet Spike’s other self is risky with possibilities of confusion so Princess Twilight got an idea to have them go to a different location. In that location, Silver Shoals is where Spike’s counterpart is waiting.

Thanks to Daniyel099 for editing this.
https://www.fimfiction.net/user/292246/Daniyel099