bastardluthor asked:
Please I'm begging u can u write a drabble on nerdy elsa? She's so valid and I love her sm

"Constellations?"

"Yeah. You know, those bright dots in the sky?" Teased Elsa with a smirk.

Anna eye-rolled. "Ha-ha. I'm not an idiot. I mean, why talking to her about stars? Also, wasn't she sleeping at that time?"

The Queen worried for that little girl. The night has fallen a long time ago…

"No, it's fine. Hey, it was her birthday today. I wasn't going to miss that opportunity."

Anna put her hands on her hips, both astonished and amused. "So that's why you wanted to know where her house was. It wasn't just to make sure that her ice sextant got formed back. You also wanted to ask her parents when her birthday was."

"Exactly." Smiled Elsa.

"Well, that explains why you're late then. You said you were going to be busy, but I did not expect that. It's a good thing that I know you're a nerd, your excuse is legit."

Now it was Elsa's turn to eye-roll, but she had a 'guilty' smile.

Anna nudged her. "I bet she didn't expect it as well. Having the Snow Queen as a birthday gift."

"It's not like I jumped out of the cake", snorted Elsa. "I just knocked once the party was over. We went on the roof and looked at the stars. I wanted to teach her the name of the constellations. What's interesting is that the Northuldra have different names than ours to call them. Did you know that?"

"No, but it's super cute of you to have– Wait, on the roof? That's dangerous!" Suddenly panicked Anna, and Elsa saw the familiar emotion in her eyes that looked like all of Arendelle people were her children.

"I created an ice platform." Reassured the blonde.

Anna didn't hide her relieved sigh. "Okay. And you created an ice telescope as well? I still can't believe it actually works. Like, an actual functional telescope made out of ice."

Elsa shrugged. "It's not that complicated, really. It's just a game of mirrors. Which are glass, and thin ice is a lot alike. The trick is to correctly use refraction, so I just had to put the right curve in the ice lenses to make them hyperbolic. Ice is really convenient when analysing the light beams, and it's easy to make prisms and direct the light in their conical sections. That's basically geometry."

There was a silence, and the elder stared at Anna who had simply looked at her with a smile.

"You didn't get anything of what I just said, uh?"

"Nope. You lost me at 'game of mirrors'." Smirked Anna. "But I like to watch you ramble on nerdy stuff. You're adorable. Although…"

She interrupted herself to yawn. "…you can get very boring."

It was late at night, and therefore normal that she felt tired, but Elsa took it bad, especially with the side look Anna gave her.

"Hey, that's mean."

The redhead grinned.

"It's the truth. You really get boring when talking about stuff you're passionate about."

"Have you ever heard yourself when you talk about romance novels?"