Time Skip/Undyne Fight

It's been two weeks after I first slept at Toriels house. It actually just been the same everyday, I wake up, make breakfast and head to Torirls house. After that I have lunch and comeback home and sleep the rest of the day, when its time for dinner twice every week do we head to Toriel's house to have dinner, if not we just stay home eat dinner then sleep. Until today I go to pick up Papyrus from Undyne's house because apparently something urgent happened. I woke up from my sleep as there is vibration in my pocket. I took out what happens to be a phone. A Phone? when did I ever have a phone? I answered the called and it was Papyrus asking if I can pick him up at Undyne's house, I said sure and that's where I am now. Undyne's house was a almost completely blue fish with red fins and the yellow eyes which were windows. the mouth was apparently the door to the house and was the teeth of the fish. I knocked on the door and waited and waited, but no reply. I felt something was wrong so I teleported inside only to see Undyne staring at me with shock as Papyrus seemed proud.

"You were right Papyrus! Sans really does have Magic!" she yelled out in shock.

"I know right? like I said 'I' the Great Papyrus discovered it when he teleported me to one of my new friend's house!" Papyrus said with pride. I can guess what is going on here, Papyrus told Undyne I can use magic and Undyne didn't believe it, so made it so that I had to teleport into the house showing Undyne I have magic.

"Hey sans do you have any other magic? Can you please teach me? How long did you have these powers!?!" She asked me frantically trying to discover all my secrets.

"I am not gonna answer any of your questions" I replied, I mean why should I tell her anything? It's my secrets, she ain't even a relative. Undyne seemed to burn with fury.

"Why Not!?!" She asked angrily, she seemed to be on the verge of exploding.

"It's my secrets Undyne, you don't have the right to ask those questions" I replied calmly, my answer seemed to make her more angry.

"Now Now Undyne, lets settle this in a calm way" Papyrus tried to defuse the situation, he also looked regretful of his decisions.

"No Papyrus! This guy have been keeping this secret from us! He even kept it a secret from you too! If he revealed his power earlier and trained you, you would already be in the royal guard! From the way I see it thee only way to open sans mouth is by violence!" Undyne yelled as she summoned a blue spear in her hand, I sighed in annoyance.

"First of all you should call me 'D' and second..."I said as my eyes brighten, On the right my eye shine neon green and black and with the left shining light blue.

"Do you wanna have a bad time?" I said in a dark tone. Both Papyrus and Undyne stepped back and is it just me? or is Undyne blushing. I stared more intently at Undyne who blushed even more, my non-existent eyes didn't fool me she is really blushing. Isn't she with Alphys? I know that they are not lovers yet but they must have a crush on each other? wait... my charm and charisma was boosted by 1000% passively by a skill, is this why she is blushing?

"Answer the question" I said still using a dark tone. Undyne seems to muster up some courage.

"I should be the one asking that question to you!" Undyne then summoned more spears in the air and threw them at me along with the one in her hand. I dodge them all by just moving one step the side. Undyne seems to be shocked she continued to throw spears at me which I dodged by small movements.

"It's my turn now" I said as I summoned 3 normal gaster blasters surrounding me and shot them at Undyne. Papyrus who was spectating seemed to be flabbergasted at the sight of my gaster blasters. Undyne quickly to the side as the floor she was just on got obliterated.

"Huh, I guess we should have fought outside"

I said as the floor was still smoking. Undyne seemed to be angrier as she threw more spears at me, I quickly teleport outside.

Undyne kicked down the door and ran towards me with a spear in her hand. In response I summoned a long and sturdy bone and used it as a staff. In my past life I had been in contact with a lot of staffs and used them in defense against bullies, so I know how to somewhat use it. Undyne first try to pierce me with her spear in hand. I responded by knocking the spear in the air useing one end of the bone staff and hit her face using the other. Undyne yells back in pain as I go in for another strike. She didn't have time to respond before I knock her out by hitting her in the head.

"Undyne!" Papyrus yelled, he clearly seems to be worried for her.

"Don't worry, she is just unconscious, just leave her to sleep for a while and she will be fine" I said, that seemed to ease his worry. Papyrus turned towards me and asked.

"Why did you fight undyne in the first place? you could have easily talked and defuse the situation" I shake my head in response.

"Because then she will think it is her right to know all my secrets and push me around, only by fighting and beating her can you actually make her think twice before asking" I replied, Papyrus expression then turned sad, he knew I was right, he knows Undyne better than me.

We then placed her on her bed and headed home.