Severus’s Teaching Assistant {NSFW Shifting Experience}

So this took place in one of my DRs that I don't really go to often. I decided to shift there because I wanted to spend some time at Hogwarts and just enjoy the atmosphere.

I was working to slowly build up to a friendship then maybe a relationship with Severus and I started from the beginning. So initially he was super cold to me and wouldn't let me speak or be involved with the classes at all. Eventually he relaxed a bit and we would have small conversations and would end every night with a cup of tea. So we were friendly at this point I guess.

This time I only shifted for around a week and after the first few days I was there, Severus finally let me grade some papers. So after all the classes were through for the day I stayed in the classroom to grade. He had left after the last class finished up which made me feel really special because I thought he would be hovering over my shoulder the entire time I was grading.

I was honestly having a lot of fun grading because for so long he would not let me do anything, at all. I would just be sitting in the corner of the class because he 'didn't want me messing anything up'.

After some time passed by I heard the door slam open so I looked up quickly to see who it was and it was Severus. As soon as our eyes connected I could tell he had something in mind. He just had this look of pure lust in his eyes, something I definitely never saw in this dr before.

I didn't even say anything as he paced over to me, I was kind of in shock I guess but I already had idea where things were going to lead and I wasn't opposed to it.

He stopped right next to where I was sitting and I had to look up at him. I went to open my mouth to speak but he interrupted me by saying "Follow me." and he grabbed my wrist. He pulled me up out of my chair, my quill still in my hand and started walking briskly with me. Eventually I let go of my quill when I remembered I was still holding it.

"Where are we going Severus?" He didn't even answer me he kept walking while pulling me along, ending up by the door of his office. He opened the door and let go of my wrist, motioning for me to go in and I did.

Something about the way he was acting was really hot to me so I was low-key feeling kind of turned on.

I stood in the middle of his office with my arms crossed and my head tilted as he closed and locked the door behind him and then turned to face me. He cleared his throat before speaking and then he said "I've had my eyes on you since you first started here. I am tired of fantasizing. I want to fuck you. Now."

My eyes went so wide at first because I really went into this dr thinking it would be relaxing and I would just be working. I had no intention of getting dicked down but since the offer arose I had to take it!

"I didn't know you felt this way..." was all I said as he took a few steps closer to me, closing in the distance between us. I had to look up because I am so much shorter than him. "Say you don't want this and you can leave. I just needed to get that out." He said this as he kept his hands to his sides, obviously holding back from touching me unless I let him.

I had to close my eyes for a second and take a deep breath to prepare myself to answer him and when I opened my eyes I looked up to see him staring at me with a head tilt, and a curious smirk on his face.

I couldn't help but smile because I knew what I was in for when I eventually said "Oh I want this." Which I could see from his reaction that it made him relax a bit and he brought his hand up to my chin and held my face up. "Good girl."

He bent down so that his face was now in front of mine and our lips were less than an inch away and I felt his hot breath hitting my face. I was a goner at this point and I wanted to get FUCKED so I whispered, my lips brushing his, "Use me." That was all it took because next thing I knew his hand was on my throat and he was gently choking me.

"Are you aware of what you are getting yourself into missy?" Which was basically him just checking to make sure I was ok with what was going to happen next. I nodded my head and gasped a bit when his grip got tighter on my throat. "Words. Use them."

"Yes I am aware. Just fuck me already Severus." As you can tell I was pretty eager at that point. Then once he got my verbal confirmation he pressed his lips against mine and gripped my throat even tighter. I kissed him back until my breathing was being restricted a little too much and I had to pull away. When I did pull back I swear I saw the tiniest smile on his lips which gave me butterflies.

My attention was quickly turned to the fact I could feel his dick pressing against me and I already knew he had a huge one so I just needed to mentally prepare myself. He looked down because he must've noticed my attention was elsewhere and then took his hand off my throat. "Strip. All the way."

I started to slowly undress, going slow because I wanted to see if that would get him to react a certain way and boy did it! "Forget it. I don't have time for your little teases. Stomach on the desk. Ass up."

I was standing there in my bra and my skirt and I kind of gave him a look that said 'wait a second' because all I had to do was take my skirt off but he did not appreciate that. He leaned in to whisper in my ear and said "Do you want me to fuck you or not?" His hand was palming himself over his pants and I could tell he really needed this so I decided to just let myself give in completely and let him do his thing. He could use a good release.

I nodded but then spoke up and said "Yes, I want you to fuck me. Please." Then I turned around and bent over his desk and he immediately pushed me down so that I was pressed against it. His hand trailed down my back and I thought he was just going to unzip my skirt but he fucking ripped it off me. I almost yelled at him because it was one of my favorites but I kept quiet.

I just had to grit my teeth as I listened to him unzipping his pants. I remember shivering as I felt one of his hands grip my ass and the other one move my panties to the side. Then I felt his dick rub against me as he lined himself up with my opening.

I had to take a deep breath and grip the edge of the desk in anticipation for him to enter me. What I did not expect was for him to show absolutely no hesitation and literally shove himself into me. This caused me to let out an indescribable sound and I gripped the desk harder.

"You're so fucking tight around me. Even better than I had imagined." He then went quiet as he began to pull himself out slowly then right before he rammed himself back into me he said "I am going to use this pretty little body of yours. Fill it up with my cum." and that was followed by him thrusting in and out of me with so much force.

I was gasping and moaning and making ungodly noises as his hands gripped my hips. Let me remind you this man has a huge dick and was somehow able to bottom out in me. Every time I had all of him in me his hips would smack against my ass and the room was just filled with moans, grunts, gasps, and the sound of our exposed skin smacking against each other.

The feeling of him pounding into me and not having partaken in any foreplay, shit fucking hurt. More of a stinging uncomfortable feeling than actual pain. But there were times where he would thrust at an odd angle and hit my cervix and THAT SHIT IS PAINFUL AS FUCK.

At some point I tried to turn my head to look back at him but he grabbed my neck and pressed it down against the desk. This then led to his hand finding its place gripping my hair and pulling it as he kept on fucking me with all his strength.

It was obvious from the start that this occasion was only for him to get off, which I was ok with, but I remember wondering when he would ever stop. (I mean that in a good way) This man can last for quite a while and that day he was really energetic.

Soon after that though I could feel his thrusts becoming a little less controlled so I wanted to say something to hopefully push him over the edge, "Cum in me Severus, please! I'm begging you." I moaned out and a few seconds later he groaned as his dick pulsed and twitched inside me while he came. "F-fuck!"

I was fucking covered in sweat and was a panting mess as he squeezed my ass, slowly pulling himself out of me. "Don't move. I want to see what a mess I made of you." So of course I stayed where I was.

After staying like that for a good minute or two I lifted myself up by my arms and I already knew how fucked I was going to be for the next few days. By the time I turned around to look at him he already had his pants back on. Which I remember made me smile because I was thinking about him from a different dr and he caught me and said "What are you smiling about missy?"

I dropped my smile as we made eye contact and I sighed because I remembered I no longer had a skirt. "My skirt. You fucking ripped it." I said while I pointed over to it on the floor to show him. "Oh." was all he had to say at first.

Then he put his finger up as if he got an idea, "I am giving you a cloak to wrap around yourself but I expect it to be cleaned and folded and left on my desk in the next few days." I nodded as I grabbed my skirt and wiped some of the cum that was leaking out of me and on my legs. I got super giddy inside at the thought I would be able to wear one of his cloaks even if it was just temporary. At least I put it to good use one last time.

Before he went to grab the cloak, he stepped up in front of me while I leaned against his desk that was in obvious need of a cleaning after what just happened on it. "I appreciate you letting me use your body but if there is a next time I will make sure that I won't be the only one to cum. Sound good?"

I nodded and said "Sounds good." Then he turned to get the cloak, muttering out "Far better than what I had fantasized about. I love your pussy and the noises you make. I hope I get to experience that again, soon."

And that's where it pretty much ends. He got me a cloak and I wrapped it around myself and headed to my chambers, walking very uncomfortably. Since I did not feel like having to suffer the next few days because of how sore I was I ended up saying my safe word once laid in my dr bed and that's it for now...