Casey was very excitable, tidying up her room as Crystal was sleeping over which Rocket was understanding, knowing she loved hanging out with Crystal since he and Thor were also hanging out, seeing Casey had cleaned up her room hearing the doorbell makimg the growing female kit excitable using her super-speed power speeding past her uncle makimg it to the front door of the compound, so she could answer it seeing Crystal there hugging Casey makimg her giggle letting the magenta-furred girl in, following Casey to her room impressed by how big, that Casey's room was

"Thanks, as your room in your uncle's castle is huge too, and so glad you're here." Casey said, changing into pyjamas, hoping they didn't have to use their armour tonight so they could relax, be kids makimg Casey excitable, seeing Crystal had brought a lot of soda and candy with her, to keep them up all night which Casey was excitable about, especially seeing a certain princess of thunder show up, seeing Crystal covering her horns, because of the thunder feeling Casey hug her, stunning Thrud, that Casey had an new best friend.

"Thrud, this is an awesome surprise!" Casey said hugging her.

"My dad let me come with him, who's this?" Thrud asked.

"C-Crystal P-Pimperton, nice to meet you, Casey talks a lot about you." Crystal said.

Thrud was surprised, that Casey's new friend was shy, despite Casey telling her Asgardian friend, that Crystal would warm up, once she got to know Thrud, noticing something was off, because Thrud was jealous of Crystal, hearing Crystal say that she was going to use the bathroom, makimg Casey guess, her magenta-furred best friend was upset, just concealing how she was feeling from her, going after her.

Rocket was understanding after Crystal told him what was going on, stunned that Thrud was behaving like she was jealous, makimg Casey ask why, as she loved hanging out with Crystal, finding it sweet that she didn't want to wreck their first sleepover, giving them advice, makimg Crystal guess, they could try, plus hearing thunder iside was making her freak out, along with Casey seeing Thor and Rocket go to Casey's room, seeing Thrud was having a meltdown, making Thor take her home

"Crystal, it's okay, I'm sorry that happened, Thrud is just being dumb, uncle Thor will handle her." Casey assured her.

Rocket smiled at them, knowing they were meant to be friends, like him and Thor, seeing them going back to Casey's room, relieving him because he had been worried that their slumber party might be wrecked, relieved Casey had told him, what was happening seeing Thor return, assuring him that Sif was dealing with Thrud hearing giggling from Casey's room, guessing they were having fun, which was good, seeing a text from Crystal's uncle, askimg if she was alright replying makimg Thor understand.

"So Thrud's jealousy almost ruined Casey's sleepover, with Crystal?" Lylla asked the next morning, seeing Rocket nodding, making him nod while drinking coffee, making breakfast for Crystal and Casey along with Cassie and Monica making them understand, surprised that Thrud had been jealous of Crystal who was a lot of fun but very sweet, just like Casey, sitting downn at the tables.

"Yes, she almost did, but Casey and Crystal told me what was happening so I was able to help them." Rocket replied to her, impressing her along with Cassie and Monica which made them curious, seeing a very tired Casey and Crystal with bed-fur which Rocket found cute, guessing they'd been up all night, having fun seeing them sit down, beside Cassie and Monica.

"What time is it, guys?" Casey asked, yawning.

"Ten in the morning, kitdo, guessing you two were up late?" Rocket answered, seeing Crystal agree drinking coffee to wake herself up, along with Casey telling him what she and pal had been doing, feeling comfortable around Casey's other friends compared to Thrud making Carol smirk at the magenta-furred girl was impressed, making Casey happy for her.

"Yeah, I feel comfortable around your friends, Casey." she told her makimg the female kit grin.

"That's good, since you make me feel welcome, at your uncle's castle." Casey replied to her.