Papyrus

Despite you being a human, Papyrus seemed to have a strange interest in you. Sure, when you first ran into each other in the Underground, he beat the ever-loving shit out of you and planned to turn you in to Asgore, but now you think you guys have moved past that...mostly.

It appeared that most of his leniency came from his curiosity about you. Never had he experienced building a relationship with a human, never mind also living with one, something that he was experiencing with you now. Everything you did caught his attention. A sneeze, a yawn, your mannerisms, anything you did, it caught his attention simply because you were a human.

Because of this, he started his own little experiments on you just to see your reactions. How would you react to certain foods he'd make? What would you do if he abruptly tripped you? And a new question that came to mind: What did you look like under your clothes? He wasn't being weird with that last thought! It wasn't like he was fantasizing about you! Or that's what he told himself at least. That was until things actually started to become intimate between you two...

You were laid back nude in Papyrus's bed with his skull between your legs. You don't know how you ended up in this position. Maybe you were telling yourself that you were too intimidated to say no, or maybe you secretly liked the idea, but you honestly couldn't think or care about that right now.

Staring up at you intensely through his eye sockets, his glowing, red tongue dragged along your most intimate areas, waiting and watching every reaction that came out of you, and it was starting to make his arousal build within him at the noises you were making.