(Sorry with the beautiful picture... Yes, I have plenty of sin... Please kinkshame me...)
"Yes, I'm sure..." You decided 'sure, it can't be that bad.' He smirks and replies slowly.
"If it hurts, just tell me to stop." 'Wait, why did he mean to just tell him to stop? Wasn't I supposed to be topping?' You asked yourself. Boys, they're just so confusing. (Sorry to all the guys reading this, which there probably is none XD)
Before you could ask him what he meant, you were flipped by some invisible force. You closed your eyes tightly, and when you opened them, you blushed. Sans was now on top of you. "H- hey! It was my turn!" you whined.
"Oh, please. Did you really think I'd let you have some fun? The only reason why I'm doing this is to please me. It is boring here by myself. Just me doing me." He shrugs, looking down at you.
You were about to tell him what you thought. "So, you don't lo-" you were cut off by Sans slowly pulling your shorts down, showing your laced F/C panties.
"Heh, well well well. This is surely gonna be fun..." Sans whispers to himself, just loud enough for you to hear.
He pulls down the panties, instant cold hit you as he studied your womanhood with wonder. You blushed a deep crimson as he stood up and leaned over you. You suddenly didn't want this... You realized you hadn't wanted it in the first place, you were just trying to impress Sans.
"Hmn? Shy? Or do you change your mind about this?" He pouted and waited for you to answer.
You nod your head, trembling with fear. He smirked wider. "Well, you can't go back now. It'll just make it awkward." Your eyes widen. Was he... Was he going to rape you?! (Quite the shock, huh? Not what you expected? Well, you chose this! XD)
"S-Sans, please, stop this! There are other ways to 'please' yourself!" He rolled his (eyes?), frowning.
"Why stop now? There is no other way to please me~" Sans was now leaning over you, whispering in your ear.
"Sans! N-" but he cut you off with a hard kiss, slamming his teeth onto your lips, causing you to gasp in pain. Doing so left a perfect way to shove his tongue into your mouth.
You screamed silently in ecstasy. You felt something poke your thigh, and you soon realized it was Sans's blue ecto length. Your eyes widen at the sight.
"Humf-" your muffled cries could only be heard Sans and you.
"Stop making so much noise, you'll wake Papyrus!" Sans snaps at you.
You flinched at his suddenly risen voice. You nod slowly, forgetting for a second that Papyrus was in the house probably cooking.
"Good. Now if I let go, will you scream or run away?" You shake your head, immediately a plan ran through your mind. First, you'll tease him a while, just until Papyrus calls you both.
Second, you'll push him off of you, quickly say sorry, (cuz u iz a innocent little gurl ;) then throw open that door and RUN out of his room.
You barely had time to rethink it over when his tongue lolls out of his mouth, his smirk was enticing. He lowers his head down slowly, letting the tip of his tongue drag itself across your neck, making sure every inch of your skin was covered with his 'blue' saliva.
You couldn't help but moan at the feeling of him lathering you in his saliva. He was obviously hoping for that response. "Like that?" Again, you reacted before you responded. You nod.
Damn me and my stupid head always nodding! You angrily cursed yourself.
"You don't have to hide it... I know you liked it," He replies. "Now let's skip to the good part, shall we?"
Before he acted, you new what he meant. He slowly pulled his shorts down, watching you as you eye him intently. A blue cock appeared on his pelvic bone, and he smirked as he saw your eyes widen and a dark red blush covered your face.
  You looked up at him, your eyes still wide, and you freeze up, feeling the bulbous blue tip touch your bottom lip.
Just the touch made shivers run down your back and causing your womanhood to tremble with need.

(SHIT I PUBLISHED THIS BY ACCIDENT DEFINITELY NOT TO TEASE U ALL- Author-Chan