An Old Friend ' Underfell Sans x Reader '

Part 9:Thoughts

~(Y/n) Pov

     I woke up in a different room. I started to panic until I noticed a pair of boney arms around my waist, it was Sans. I felt my cheeks heat up, I also noticed I was still wearing Sans' jacket. I didn't really understand why I was getting so flustered, we slept together when we were younger, the only difference was that we're older.  Sans definitely grew up, he's much more handsome.....did I really just think that!? Am I falling for my best friend?

     I felt Sans starting to stir so I closed my eyes and pretended to still be asleep.

~Sans Pov

     I stirred awake, not remembering much before going to bed. I looked down and saw (Y/n) asleep. I smiled and hugged her, being careful so she won't wake up. It was still hard to believe she grew up so much. She was going to turn 20 in a few days, I already had my birthday, so I was 24. There were two reasons why I called her 'Sweetheart'.

     One reason was because she was so sweet and nice to everyone. No matter what someone would do, she would mercy them. Unless I was included, she would try to stop me from getting hurt, I guess I know why now. The second reason was because she stole my heart...

~Flashback

     "Sans! Get your brother and come here," that was Dad. I grabbed Papyrus and came to the front room, sitting down on the couch and setting my younger brother aside.

     "What's up Dad?" He was holding something small in his arms.

     "Sans, I want you to meet (Y/n), her mother died so her father gave her to me so I could watch over her," he handed me a baby girl with short (H/c) hair, when she opened her eyes, they were a beautiful (E/c). I felt my soul pulse, and a small (F/c) soul came out of her chest. Her soul and mine danced around each other before her soul going back into her and my red soul going into my chest.

     "Dad, what was that?" I asked my father who had a shocked expression.

     "Sans, you must stay with (Y/n), protect her with your life. What I just witnessed, was an early sign of soul bonding. Meaning, one day, you and (Y/n) will be an item, its fate," I nodded, understanding.

~Flashback End

     That day, I promised to protect her, no matter what.
 
     "Hey Sweetheart, ya need to wake up," I lightly shook her, knowing she's not a deep sleeper.

     "What time is it?" She asked in her morning voice, I chuckled. I teleported her bag to my hand and got her phone out of it.

     "3:00 p.m, that's what your phone says," she held out her hand, I handed her the phone. When she looked at it, she quickly looked away.

     "Too bright," she giggled, making me chuckle. My skull was dusting with red.

~(Y/n) Pov

     "Move your ass," I playfully pushed him, laughing.

     "It's my bed," I pushed him fully off the bed like I did when we were kids, I busted out laughing, "oh so that's funny huh?"

     "No, it's punny!" I laughed at my pun, I glowed in red and the next thing I knew, I was I the ground beside Sans with a shocked expression. He busted out laughing and I laughed too.

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Word Count:577