Science!Sans x Underfell!Sans : Drunk at a Party :

I can't not deny (smut)

A/N: Wow I am getting into a little bit of a groove!!! So here is this update!!! Enjoy~

It's been a while since the incident with Fell earlier and I've been drinking like theirs no tomorrow. I haven't managed to pass out so it's been hard to stop thinking about him. It's like I need him to survive. I sat down, deciding it would be best not to fall over and embarrass myself more than I already have. I looked around before sitting and no one was there. I was so glad. I just decided to watch everyone converse at this dumb party. Geno was talking with Death, Classic was off drinking or something, Blueberry had gone somewhere to do something (or someone) and Fell was... wait.... where was he? Come to think of it I haven't seen him for a while now. So I decide to get up and look for him.

I've asked everyone at this stupid party and no one knows where he is. I've also looked almost everywhere and the place that I haven't looked is the closet... the like... only closet here for some reason. I got to grab the handle when I hear something coming from inside. It sounded like... crying?! I quickly grab the door handle and open the door, without slamming it, I didn't want to attract any attention to myself. I closed the door behind me and looked directly at Fell who was curled up in a ball and he was indeed crying.
"Fell?" I question as I slowly walk towards him and sit next to him. He didn't answer me so I asked again.
"Fell..." I put my hand on his shoulder, "are you ok?" Even though I was mostly drunk I still was somewhat sober and I think I was handling the situation quite nicely. All I got in response was a grunt and he turned away from me. He really didn't want me there but I wasn't having it.
"Fell. You need to tell me if you are ok..." I tried to put my hand on his shoulder again but he grabbed it and turned towards me.
"Why the hell do you care?!" He snapped. His face was so close to mine.. I didn't know how to respond.
"It doesn't concern you." He moved his face closer to mine, this time I noticed more the tears streaks that glowed a very faint red. Before I could examine them more I suddenly had a strange idea that I went through with. I absolutely blame the nog. I had pressed my face against his, in a sort of skeleton kiss. It was a very stupid idea and I didn't expect what happened next. Fell kissed me back...! My eyes opened wide an shock. He was still holding my hand and he was beginning to push me onto my back. I said his name as we fell back, it was muffled by the kiss. Fell pulled out of the kiss after he had pushed me onto the floor.
"F-fell... w-why did y-you?" My face was full blush and I couldn't stop myself from stuttering. He chuckled in response.
"Well you're the one who kissed me first, I was just returning the favor~" I trembled as the words fell out of his mouth. He strong raspy voice took over my body, making my magic form. I took notice of this and looked down to see my magic was glowing a light blue. Fell saw me looking down so he looked down also, and he saw my glowing erection.
"Well well. What do we have here?" He said as he moved down to my nether regions.
"F-FELL!" I yelped in surprise. He pressed one of his fingers over my mouth and shushed me. I then realized that if I'm too loud I'm going to grab the attention of anyone within ears reach outside. I focused my attention back to when Fell was doing, he had begun to pull my pants down and my glowing erection sprung up as his eyes looked it up and down. I covered my face in embarrassment, I couldn't believe this. I felt his hand grab it and start to stoke up and down my length, he leaned forward and whispered to me;
"Oh.. you are going to love this~" He purred into where my ear would be, I moaned a little in response. He went back down to where my member was and he stopped stroking it.
"W-why did you s-stooOahAHH!" His hot breath made me tremble, he had begun to suck me off. It felt so good. He was taking my whole length inside his mouth and it was making it hard for me to contain my moans but I bite my hand to hold them in. He begun to move faster sucking and licking all around my cock. My moans were getting louder and my breath was becoming hitched, I could feel my climax approaching.
"a-AH! F-fell I'm going t-to... c-cum!" Fell obviously heard me, even though my voice was muffled by my hand, because he stopped and begun to pull down his own pants. I looked at him as he moved his whole body over me, his face hovering just over mine.
"Are you ready?" He looked me directly in the eyes.
"B-but we didn't do a-any p-prep-" He stopped me by forcing me into a kiss, he pulled back and whispered,
"We don't need it~" He forced me into another kiss as he slammed into me. My scream was muffled by the kiss. He let me adjust for a minute before beginning to slowly thrust into me. Each thrust was deeper than the last, and with each new thrust pain was slowly becoming pleasure.
"Mph-ah-mmphf" My moans were still muffled by the kiss and Fell's tongue had begun to lick my teeth asking for entrance, I opened my mouth letting his tongue roam around my mouth. I tried to use my tongue to be dominant but I ended up failing in that. As his tongue explored my mouth more he begun to thrust into me faster. I moaned louder into his mouth as he kept getting faster and faster. Once again I could feel my climax approaching I tried to tell him but I noticed that his thrusts were becoming jerky,and out of order, and he was moaning into my mouth. He pulled out of the kiss we were both panting heavily and our breathing was hitching as we were both about to cum and we both knew it. For a few seconds we just stared into each other's eyes, however as out we were about to reach our peak, we both moaned loudly.
"I-i'm gonna c-cum deep inside your a-ass, nerd~" Fell said as he thrusted deeper. I only moaned loudly in response.
"I.... I-i'm gonna c-CUM!" I came as I said that, my juice spilling onto both of our sweaters, Fell was still thrusting really deep inside me. His last few thrusts were rough and he grunted with everyone. His last thrust was much deeper than it had to be and he came deep inside of me, just as he promised. He grunted through his teeth as he filled me up. After he was done cumming, out magic faded away and he collapsed on top of me. He chuckled slightly,
"Heh, that was fun nerd." I couldn't speak, all of that was just too much and I passed out.

'That was really fun' Was my last though before I drifted off.

A/N: Ok so yeah this is my first time writing a full smut. I have been writing small versions of smuts for practice but never a full one. So yeah what do you guys think of this rushed full first time smut? Any feed back helps. :3 Thanks for reading :3