Star and Pony Head were partying in a club called the Scum Bucket. 

Pony Head: Is this a blast or what, B-Fly? 

Satar: Yeah-heah! But ... I don't see (Y/N) and Twilight anywhere. 

Pony Head: Pfft! You got me, girl! And I'm way more fun than those two combined! 

Star: Wh-WHat are you talking about? 

Pony Head: W-Well ... uh ... I kind of ditched them and left them in the other dimension ... oops. Hahahahaha. 

Star: WHAT?! 

Pony Head: B-Fly I can explain! 

Star: How could you do that to my best friends! 

Pony Head: Best friends?! I'm your best friend! I mean the last time I checked anywh- 

Star: I can have more than one best friend you know! Besides, my best friends, wouldn't be friend-ditching liars. 

Pony Head: Those ... those Turds mean that much to you? 

Star: They're the best turds I've ever known. 

Pony Head: (sigh) Alright. 

Back at the Amethyst Arcade ... 

Robot Man: For the last time, where is she?! 

(Y/N): You're not going to make us talk! ORA ORA ORA ORA ORA ORA ORA ORA ORA! 

You unzipped several parts of his body, then reassembled him, and then tied him down with a bunch of vines! 

The other two were getting beaten down by Twilight. 

Twilight: AVAN STRASH! SOLID SCRIPT: LIGHTNING! 

They were on the ground all sizzled. 

(Y/N): Geez, they don't give up. Also, nice Avan Strash. 

Twilight: I learned from the best! 

They both charged back at you again and- 

(Y/N) and Twilight: UGH! GUM GUM GATLING!/KAMEHAMEHA!!! 

Star and Pony Head emerged from their portal to see you both fighting the two guards! 

(Y/N): RASENGAN!

Twilight: EXPLOSION! 

(Y/N): GETSUGA TENSHOU! 

Twilight: SOLID SCRIPT: FIRE! 

(Y/N): SHOW ME ROCK! JAN KEN PAPER! 

Star: Hang on guys! CRYSTAL DAGGER- 

Pony Head: WAIT! B-Fly! Hold out your hand! 

Pony Head gave her the Dimensional Scissors. 

Star: Your dimensional scissors? 

Pony Head: I wont' need them where I'm going. 

Star: But Pony Head- 

Pony Head: HEY YOU GUYS! 

They turned to Pony Head. 

Pony Head: I heard you're looking to ride with a pony. So come and get me! 

They screamed as they charged at you. 

Pony Head flew as they chased her around the arcade. 

Pony Head: WHOOO! OUT OF THE WAY SQUARES! 

Squares: AAAAAAGH! 

Pony Head crashed through them, and they fell down into a Tetris-like sequence. 

Squares: YAY! 

(Y/N): Did Pony Head just help us? 

Twilight: Star! 

Star: YOU'RE BOTH SAFE! 

She hugged you both, and you both hugged her. 

Star: Okay! That's enough! 

Star pulled you both along. 

Pony Head started to use magic blasts from her horn to hit a bunch icicles, creating several clouds of dust, and distracting her pursuers.

Pony Head: WHOO HOO! I FEEL SO ALIVE! HAHAHAHAHAHAHA! 

But then she slammed into a wall. 

The three began to corner her, only for- 

(Y/N): AVAN STRASH! 

You knocked them over again. 

Star: BACK OFF YOU CREEPS! 

Twilight: Don't worry Pony Head! We have your back ... of ... your ... head. How does your anatomy work again? 

(Y/N): Nevermind that. Let's get them! 

You all got ready to fight, bt- 

???: That's enough Cupcake. 

A massive Pony Head appeared. 

Star: Is that King Pony Head? 

(Y/N): W-WOW! 

Twilight: There's a King too? 

Pony Head: Oh ... hi ... Daddy. 

King Pony Head: Hello Princess. 

Star: Why is he here? 

Pony Head: Oh, B-Fly, it's the end of the line for me. But at least I got in one last night of fun with you, girl.

Star: Before what? 

Pony Head: Before this! I'm going to St. O's! 

Star: (gasp) NOT ST. OLGA'S REFORM SCHOOL FOR WAYWARD PRINCESSES?! 

Pony Head: It's true! I did it to myself! I'm headed for the slammer! 

King Pony Head: It's a reform school, Cupcake, not prison. 

Star: Oh Pony Head! You knew you'd get sent to St. Olga's, but you still came back to help (Y/N) and Twi! 

Pony Head: Well ... it's hard to say it ... but ... they're ... your other ... b- be- beeee .... beeeeeee ... besties! Okay! I said it! 

Star: Oh come here! 

Star hugged Pony Head. 

(Y/N): Aww! 

Twilight: (smiling happily) I guess Pony Head really does have some good in her. 

(Y/N): She values her friendship with Star that much. 

Robot Man: Alright, it's time to go.

Star: Bye Pony, I'll miss you! 

(Y/N): Pony Head ... good luck. 

Twilight: Take care. 

Pony Head: Aw. Thanks Tur- I mean (Y/N) and Twilight. But dont' worry! No jail can hold on to me for long! WHOO HOOOOO! 

She was then taken away. 

King Pony Head: Kids ... you have them, and then you wish they weren't around. 

He then disappeared into the portal. 

Star: ALRIGHT! MY BESTIES ARE BESTIES! 

Twilight: Uh ... I wouldn't go that far Star. We're just friends. 

(Y/N): Yeah. Now how do we get home? 

Star: Ta-da! 

Star brought out the dimensional scissors! 

(Y/N): The scissors! 

Star: Yep! Now we can go to any dimension we want! 

(Y/N): I know the perfect place! 

Back at the mansion... 

Star and Twilight were lying with you on the couch, and you guys were eating nachos.