You have been in the underground for a few years and got to know everyone very well, even Toriel. But there was a skeleton that you had a crush on. Who could it be? Why the small Sans of course. You always found him cute and very kind.

Today you walked in the forest with your (F/c) hoodie on. You ended up bumping into to something due to not looking where you were going. "HUMAN ARE YOU ALRIGHT?" You saw it was Sans who you bumped into and who was making sure you were ok. "Yea I'm fine Sans. Thanks for making sure I was ok but you didn't need to." You replied. Sans smiled and said "WELL I DON'T WANT A FRIEND HURT SO I JUST WANTED TO MAKE SURE YOU WERE NOT HURT." You smiled back. "Well I'm going to continue walking around. Later Sans." You waved at Sans while walking away.

Later you went to see Undyne who was the royal scientist of Toriel. You and her were best friend like Sans was with Alphys. You always messed with Undyne about her crush on Alphys. But today was different. Undyne was messing with you about your crush on Sans. You didn't mind knowing it was payback but you played along.

While walking home you saw Sans sitting down on the ground in waterfall. To you it was unusual. So you walked over and sat beside Sans. "Hey Sans you ok?" You said sort of worried. "HELLO HUMAN AND YES I AM FINE. JUST.......thinking...." Sans replied. You were shocked by the fact he lowered his voice from his usual way of speaking.

"Well alright.....If you need time alone Sans then I can go if you'd like" You said as you were about to get up but Sans gently grabbed your arm. "No you can stay.....In fact I'd rather you you stay." You were again sorta surprised. You sat back down beside Sans then after a few minutes Sans spoke. "(Y/n) can I ask you something?"

"Sure ask anything." You said smiling. "(Y/n) will you....be my girlfriend?" Sans asked after looking at you. You were shocked by what he asked but quickly replied with "Yes I will Sans." After you said your answer you hugged Sans and he hugged you back. After a few minutes you and Sans pulled from the hug only for you to be greeted with a kiss on the lips(Sans pressing his teeth to your lips).

THE END

Hope you enjoyed and if you have any requests put them in the comments below and I will most likely do your request. Even if you request an AU I don't know I'll research it. But hope you enjoyed.