SANS IM LEAVING TO Go UNDYNES HOUSE. Papy said in a really loud tone. Ok, I'll just wait till (Y/N) to come over. " Sans replied. OK WELL BYE. Soon after papyrus left (Y/N) came over to watch a movie with sans.

Sans POV
She's here and she looks as sexy as ever- I was cut off by (Y/N)- "Hey sans, what movie are we watching?"" Um we're watching my favorite movie called " The day before Fall", is that OK? " yeah that sounds like an AWESOME MOVIE" " glad you like it. "

Y/N pov
"Well let's go" Sans teleported us to his room to watch the movie. Hey um (Y/N) I need to go to the bath room for a second" so I paused the movie even though it barely started.
Time skip
It's been a while but sans was still in the bathroom. I decide to go and check on him. What's he doing in there? All I heard was moans, I thought he was hurt and ran to the bathroom and opened the door quickly. I was shocked at what I saw. Sans was a panting, moaning mess. " S-sans?, w-what". (Y-Y/N) I'm s-sorry. "I'll leave you alone". You replied. You return to his room and continued the movie. A Minute later sans came in panting. " OK let's just continue the movie." Sans didn't say a word.
Instead he paused the movie and walked to you with lust in his eyes (y-y/n) ... "S-sans w-what are you d-doing." he started to speak " (y/n) i-i need you right now" "wha-what. " he started touching you all over. You bit your lip trying not to moan and pushed him away. "s-sans what a-are you doing? " sans said nothing but then he started to kiss (Y/N) this time when I tried to push him off he just became still yet still kissing me. "s-stop p-please."

Sans pov
I really needed this, I knew (Y/N) didn't like it. "S-sans please s-stop it.
She kept begging for me to stop, I didn't listen I kept on going. Then i stopped kissing her she gave a sigh of relief but it wasn't overs she tried to get off the bed I grabbed her wrists and held her down with my magic. "S-sans why are you doing this? "I need you (Y/N) please help me. " she loosen her fists. "I" she said

Third POV
You liked him and that but you thought this was a bit soon. He started touching near your breasts. He toke off your shirt and bra and groped your breasts. You stared to moan softly you didn't notice but he did and that turned him on even more. He started going to your lower area. He started licking you all over and with his hands he massage your breasts and you no longer resisted. Then he started licking your nipple and massaging the other, you kept softly moaning. He then stopped and went to your womanhood and was rubbing it over your pants/shorts. You were moaning at Sans's actions. Your womanhood was getting wetter. He pulled down your pants and underwear he started to finger you, you got wetter and wetter, he but other finger in, you started moaning a little louder. "Sans~ it's not far". " Huh? " " sans IM getting all the fun~" you then dominated him and puller his shorts off to see his glowing blue pelvis you started to lick the top. Sans groaned. His pelvis was about 7 inches long. You started to put in your mouth, you kept bobbing your head on it. He then grabbed your hair and made you deep throat him, he kept groaning. By the look on his face you knew he was gonna cum. He cummed in your mouth, you licked it all up but he saw a drip coming out of your mouth and he was satisfied he the got up and lined up with your entrance,he asked for permission and you granted, he put it in inch by inch it hurt at first. When you were ready you started to move your hips telling him you were ready. He started thrusting you slowly. Papyrus came home and didn't see you two so he went to sans's room, "UM SHOULD I GO" you both nodded your head. Sans started thrusting a little harder, but you wanted more, "sans harder~" what I couldn't hear you~" " HARDER~" he started thirsting at in-human speed. You started to moan louder. After 30 minutes you were both reaching your climax. "SANS IM GONNA" ME TOO" he's liquid filled you up. He was panting, you were both tired. "I love you (Y/N)" but you were fast asleep.