Ms. Teach (Sans x Reader)

(Y/n's POV)
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"Don't hurt yourself, Frisk! Be careful while running." I warned her, while she goes on, shouting an 'OK,' while I sat on the floor, exhausted.

"whoa... after all that, you felt tired, babe?" Sans spoke beside me, also sitting next to me.

"I had to... I'm worried for her." I muttered

"hey, teach... it's fine. there's no excuse for warning others about it, hehe. it shows how you really care." He said, laughing.

"Yeah, I suppose. Thanks!" I said, smiling.

"anytime, teach." He said.

I heard from Toriel that Alphys upgraded her phone. It was now with a built-in texting feature. I decided to join in the fun alongside Sans.

While Frisk was out, Toriel decided to test her phone with use of texting.

"Dear Frisk, Sans and Alphys are teaching me how to text. I am learning so much. For example: do you know what a 'smiley' is?" Toriel spoke while she types the buttons

I can't help but feel adored by this neat interaction. Everyone seemed to be new to the world, but... don't blame them. They're still learning!

I open up my phone just to set eyes upon a text from Frisk. I opened it and saw a funny message she sent.

"oh, hey teach. what's with the laughing?" Sans asked

"Sorry, it's just my little sister, cracking another pun in the message. Frisk is totally going to be besties with you, Baby Blue." I said, chuckling.

"why? what did she say in the message though?" He asked, stifling a laugh. I shown him her message, he read it two times, and we both started howling with laughter.

"SANS, DON'T TELL ME YOU TAUGHT THE HUMAN ANOTHER JOKE AGAIN... AND, WHAT'S WITH THE FIT OF LAUGHTER, HUMAN (Y/N)?" Papyrus grumbled.

"Dear, it does looks like that they are having fun with each other, is it not?" Toriel asked, giggling.

"A-alright, we'll stop now." I said, trying to relax by breathing from laughing too hard.

"oh stars, this is so great...!" Sans snickered

"Man... I wonder how the outside world looked like while I was gone..." I asked, and Sans wondered the same.

"And... I felt a bit hungry after all that... can we go one last time at Grillby's again?" I asked, and he shrugged.

"Hey, Sans! Where are you two going?!" Undyne asked

"just getting some grub with teach here." Sans replied

"We'll be back, you guys have fun!" I said, waving to the others.

"B-be careful, you two!" Alphys said, smiling.

"Take care, you lovebirds!" Undyne shouted, while everyone laughed.

"Haha..." I chuckled nervously as we ran. I felt warm on my cheeks too.

"just ignore them. we're still fine though." Sans said, chuckling. He must've felt embarrassed earlier, explaining the obvious blue blush in his face.

"We shouldn't use our magic at this time, honestly. Everything felt like I was drained out after all that happened hours ago." I said, finally slowing to a jog.

"yeah, that running served well, perhaps..." Sans said, huffing out some air.

"looks like we're here." He said, and we both enter the resto-bar.