"So, there's a new alicorn who claims that she rules the multiverse? Arrest them and bring them here for questioning!" said Celestia.

"My little pony, my little pony, hm hm hm hm hm!" hummed T. She was approximately the same size and shape as Twilight, but she had an aura-like mane and tail, and her cutie mark was that of a galaxy.

"HALT, By order of Princess Celestia of Equestria, you are to be brought to her magesty for questioning!" said a Guard as he shot a magical laser in front of T. "You know, it's not nice to sneak up behind someone who was just minding her business and OUTRIGHT ATTACK THEM!" shouted T. "Come with us quietly or we will use force" said another guard.

"You know what, since you attacked me first, I won't play nice with you! BURST!" shouted T as she formed a burning orb on her horn, charged it up, and sent it flying at the guards. Upon hitting the ground, the orb exploded outward and knocked them all out. T waited until they all woke up before speaking.

"You see why you should be nicer if you want ponys to comply? You do understand that I'm not from Equestria. I want to see this Princess of yours who so rudely interrupted my walk. Now if you're going to have any chance of surviving the after effects of my attack, you had better tell me where she is or the energy inside of your bodies will slowly destroy you from the inside out" said T. "She's up on the mountain. In the city of Canterlot" said a guard. I see. Off we go then" said T as she warped herself and the guards to the throne room.

"So, you are this Princess Celestia I've been told about? Well, if you want these ponys to die slowly and painfully, you might want to get the extra energy out of their bodies. Then we'll talk" said T.

After helping the guards, Celestia turned around and glared at T angrily. Now I'm not going to assume anything about you but I do know that those guards are guilty of attacking me without warning. I don't take kindly to that so I decided that they had to be taught a lesson in respect" said T calmly.

"That is all in the past. What I want to know is where you came from, why you call yourself the 'ruler of the multiverse', and how you're an alicorn" Said Celestia. "It's simple really. I was forced into this form when I entered this universe. I don't know where exactly I came from, because i haven't tried to find out. As for the title, I am indeed the ruler of the multiverse. For example, I'll just open portals to each dimention I have been to" said T a holes formed all around the room. "Amazing. I've never seen this dimention before…actually, I've never seen any of them but this one looks very interesting" said Celestia as she reached for a dimensional hole which showed the Charybdis..

"I would not touch that if I were you. That is the Charybdis. It is a legendary sea monster who three times a day swallows huge amounts of water, creating whirlpools that are capable of dragging entire ships underwater. Although the actual size of the Charybdis remains unknown, the whirlpools it creates reached over 23 meters across. Scientificly, the amazing downdraft caused by the whirlpools is strong enough to easily rip your wings off your body. I know you have battled the king of chaos, the nighttime mare, and the tyrannical Tirek, but this one is not going to fall as easily as all three of them put together! You think you can take it on, go ahead and try. I have seen gods turn pail and run at the mere sight of it. I'm talking about gods at least ten times as powerful as you are. Elements of Harmony? The moment they come out of your bags, they get eaten!" laughed T. "In fact, a giant ship is about to go under right now. Your welcome to sit and watch the show but I don't recommend you get involved with an unnecessary fate" she continued.

Celestia quickly backed off from the portal as a mighty roar shook the mountain. "Well, there's nothing to do now but watch the death of about twenty thousand innocent souls. One third of them are not even one year old!" said T. "Can't you do anything for them?! You aren't going to just sit here and watch them all die?!" shouted Celestia. "Like I said, what can I do? I do have the authority to stop it from killing these people, but if I get involved, it would obliterate your dimention as well as others! Your choice princess. Kill trillions of souls and spare about twenty, or kill about twenty souls and save trillions?" and no, you can't back out now or pick to save all the lives. Tick tock! Only one minute on the clock before I am forced to rewrite the multiversal history which means that quadrillions of trillions of deaths will haunt you forever" said T. "I'll give up my life for everyone else's!" said Celestia. "Final decision? Once you do that then there is no turning back" said T. "Just do it" sighed Celestia. "Done. DIMENSIONAL CHAOS NOVA!" shouted T before a Field of white blazed outward.

"What? Am I dead?" asked Celestia. "Nope! And good news, YOU PAST THE TEST WITH BRILLIANT COLORS!" congratulated T. "WHAT THW HECK!? THIS WAS ALL A TEST?! HOW CAN YOU SLEEP AT NIGHT?!" shouted Celestia. "Sister, Calm down! Happy April fools day!" said Luna.

"Yeah! Luna! You really did it this year! BUT THE FACE YOU MADE CELESTIA PUT ON! I HAVE GOT TO GET THESE DEVELOPED!" laughed T. "YOU BOTH SET UP ALL OF THAT PEOPLE COULD HAVE DIED BECAUSE YOU WERE PULLING A SILLY PRANK!" shouted Celestia. "It's okay! You can come out now!" laughed T. Then All the members of the Royal Guard appeared and one was projecting an image of a ship getting swallowed up by the whirlpool.

"Just You All wait for round two of this war! Your all going to pay for this!" .grumbled Celestia as she walked out of the room. "But seriously though, she still doesn't know you are really the ruler of the multiverse!" whispered Luna. "I'm not going to ruin it unless it's really necessary!" whispered T.

"Hey, something just occurred to me. Where am I going to be staying if I'm going to be helping you and Celestia around the palace?" asked T. "You're welcome to stay in my room" said Luna. "Thanks Luna" said T.

(Hey guys, I just decided to make a story of what I think Celestia and Luna would do if my OC lived with them. If you want a series, then you can request for a new chapter in the reviews. I can't guarantee you will get it, but I will try to get it done as soon as I can)