When Star sat next to the window on the train, she remembered when Twilight, Rarity, and Fluttershy came with her and Marco to Canterlot. That was the day that she truly threw her old destiny away and took on a new path by brainwashing Twilight.
It was also one of the last times that Star and Marco were in the same space before their paths split: Marco fell in love and started a family with Fluttershy while Star carved her own path of destruction and pain to others. She had started a family with Discord that got slaughtered by a great enemy of Mewni and Equestria.
And now she was trying to turn her life around by becoming Princess Luna's student and Janna's marefriend so she can finally let Marco go.
"What're ya thinking about Starry?" Janna leaned against Star.
"Um...how beautiful the scenery is." Even though that wasn't what she was thinking about, it was beautiful. Janna didn't seem to buy what she was saying, and she looked away awkwardly.
How horrible am I to be with Janna when I'm clearly not over Marco? Well, I do like her a lot! I'll just sleep with her tonight so it'll put both our minds at ease.
Star's eyes wandered to where Twilight was sitting and saw her blissfully looking at a scrapbook full of pictures of what seemed to be her and another pony. Star wanted to lean forward so she could find out who this pony was. Maybe she'd find out if Twilight had indeed taken a lover.
Star put her hoof on Janna's back and ran it delicately down the ridge on her marefriend's spine. Janna looked back with a little less worry for Star.
Princess Luna was in the seat behind Twilight and across Star and Janna when she glanced at Star looking uncertain and worried.
Is it because of me? She wouldn't offered to be my student if she didn't have faith in me as a teacher right?
Rainbow Dash knew she was dreaming, and she dreadfully knew what the dream was about as she stared at the cabin that she never wanted to see again. She tried to run away, but her movement was out of her control.
She remembered that when she saw Daring Do with another pony, they were only kissing. But she knew her subconscious was in charge of this nightmare, and that the filthy insecure part of her mind would burn heartbreaking images in her head. She could only hope that Princess Luna was able to reach the dream realm on the train and help her.
The cabin door swung open and Daring Do was pinning her new lover onto the ground in the living room, the two mares were practically sucking faces. Rainbow Dash screamed and turned away from the scene only to see them making out in front of her in the forest. Everywhere she turned, Daring Do and her little mare-toy were making out in front of her.
"You won't be needing that dress anymore..." Daring Do gave an evil grin at Rainbow Dash before tearing her lover's dress off of her body.
"NO, STOP IT!" Rainbow Dash cried, being forced to look at her worst nightmare. "I DON'T WANT TO RELIVE THIS DAY, PLEASE STOP!"
A purple and blue portal opened up above Rainbow Dash and Princess Luna leaped out of it and kicked the Dream Daring Do and her lover into the portal. Rainbow Dash gave a breath of relief as she approached the Princess.
"T-thank you." Rainbow Dash gained more control of her body as she let her legs give in to the grass below her.
"You and your fling Jackie are more similar than you know." Princess Luna gave a small smile. "Before I got here, she was fighting an evil version of herself in her nightmare. It told her to attack her ex and destroy his family, but I fought her off."
"Was that ex Marco?" Rainbow Dash couldn't think of anyone else from Earth that Jackie used to date. Princess Luna shrugged.
"Even if I knew the answer to that, it's not my place to tell you." Luna responded. Wait, did she call Jackie a fling? "You two are both getting over different ponies. I'd advise you to stay as her friend."
"Wait, what happened last night?" Rainbow Dash ran towards the disappearing Princess but she was already gone. The blue pegasus gulped, fearing the worst.
A while after the dream ended, Rainbow Dash felt the comfort and warmth of her blankets in her cloud home. The bed was warmer than usual though...
A paw brushed against Dash's leg and her eyes shot wide open. There was Jackie, her head feathers were a sweaty mess and she was still sleeping. Even though Rainbow Dash knew that Jackie dated someone from Earth, it didn't occur to her until now that Jackie was probably from Earth.
Which meant that before coming here, she was a human. And Rainbow Dash slept with her.
Rainbow Dash wished she was a unicorn so she can use magic to place Jackie on the floor, giving the hungover griffin the impression that she didn't sleep with her. Maybe she could get Rarity up here to...no, that would take too long...
Rainbow Dash nearly jumped when Jackie's eyelids fluttered and she gave a big yawn, stretching all of her limbs over Dash's body. She pulled all of her limbs back and her eyes peacefully opened in the brief second it took to realize who she was in bed with.
"Ah!" Jackie shrieked, falling off the bed with a clumsy thump. "You're the pony I met at the bar!"
"I...thanks for comforting me and getting to know me last night." Rainbow Dash turned to face the other way. "But I think we should pretend that this never happened, and I think you should leave."
"Oh.....okay, bye." Rainbow Dash felt like shit as she saw Jackie walk away out of the corner of her eye. It wasn't that she wasn't loyal to Jackie, but she needed to clear her head. She expected to be on the rebound right away, but why did her drunk self choose a former human? She should've hooked up with Spitfire or Soarin.
Rainbow Dash had to practice with the Wonderbolts today anyway, so she decided to follow through with rebounding with one of the Wonderbolts. She walked to the door of her house and made sure Jackie was gone before she took off for Cloudsdale.