Princess Peach Toadstool of the Mushroom Kingdom has come to Equestria on important diplomatic business, bringing with her the superstars of the Mushroom Kingdom, Mario and Luigi. But, when Discord is released, and aids Bowser's forces in invading Equestria and kidnapping Peach, Celestia, and Luna, Twilight and her friends must work together with Mario and Luigi on an adventure spanning two kingdoms, to rescue the princesses, defeat Bowser and Discord, and return Equestria and the Mushroom Kingdom to their former glory.

(Now with Fanart!)

Scootaloo's rather embarrassed by her Mom. Not because she isn't cool, arguably she's both the hottest and the coolest mom in Ponyville. It's not about the fact that her mom serves on the royal court either, though that doesn't help. Maybe it's got more to do with the fact that the reason her mom is almost never seen after sunrise or before sunset, or because before the Mare in the Moon returned to Equestria, she knew her name.

Or, you know, that her mother is a chocoholic, an embarrassing know it all that's actually lived it all, owes personal favors to Princess Luna, and has the unfortunate job description of 'ruler of the land and day'. Sure, having Celestia as your mom is cool and all, but at the same time nopony can know who she really is. Nopony gets to 'know' her, and every moment is guarded against snooping visitors. And yet, there's still hope for a better day to come. Even when all your mom's enemies and rivals finally come home to roost and ruin your day. It can't be all bad, right?

Now with a Trope Page: Scootamom on TVTropes

And Fanart:
[img]http://fc04.deviantart.net/fs71/i/2012/266/8/9/scootamom_by_familywing-d5fnnov.jpg[/img]

Princess Luna's Lunar Stallions kidnap Twilight Sparkle when they see how lonely Luna is, and give her to the Princess as a gift. Nightmare Moon emerges from Princess Luna's psyche during the sleepover. The dark goddess would love nothing more than to have the beautiful mare all to herself, and the resulting chaos forces Celestia to call a psychologist to sort out Luna's multiple personalities.