Still to this say I find it hard to believe. We all at some point have sexual fantasies that involve impossible scenarios. They turn us on, but we can't expect them to come true without being delusional. It had always been that way for me, until that day. About six months after turning eighteen I had just accepted by a decent college. It was so exciting, my dreams were finally on their way to becoming true, there was plenty new things to learn, people to meet, and generally a good time to be had. But I never expected all the things that happened there. Oh, I can't wait to tell you.

Physics was the very first class on the very first day. Not my favorite subject, that's for sure, but I can manage it. The classroom was big enough for two hundred students. After introducing myself to few of my classmates, I sat down besides a cute girl who caught my attention. As I cleared my throat to introduce myself to her, the teacher walked to her desk, the sound of her steps echoing throughout. She was in her early forties, thin but rather tall; had long brown hair and big hazel eyes. She wore a dark red turtleneck shirt, which hugged tightly her upper body, from the waist to the chin, showing a beautiful figure and perfectly round and firm breasts. Black skirt, stockings and high heel shoes completed the outfit. When she spoke, it was with a sweet and melodic voice, almost like she was singing. Her name was Elizabeth.

I had never been attracted to older women, and frankly didn't understand the MILF phenomenon. But when I saw her, my eyes were glued. Was it the aura of authority that enveloped her, despite being a kind and understanding teacher? Was it the taboo, the forbidden fruit? I couldn't know. As the days carried on, most dudes on my class would talk about that young "blonde bombshell" that taught us math, even my dorm mate could't shut up about her. I felt like the odd one out. Maybe the math teacher was too similar to any other girl in class. But Elizabeth, she was something else. Despite knowing that realistically nothing could happen between us, I knew that anything was possible inside my own mind, so the fantasies begun.

I could not focus on her class. I only looked at her, and imagined what it would be like to hold her, kiss her, lay her on a soft bed and squeeze her breasts as her hand made her way between my legs. Also, I admit I've always been into bondage. So when she rested her hands behind her back, I imagined she was tied up; when she covered her mouth while thinking, I imagined she was gagged. The thought of her bound to a chair or a bed turned me on more than I was willing to admit. I didn't even want to be necessarily rough with her. Just keep her, kiss her, tell her how gorgeous she was, protect her. That gentle authority she seemed to command on other students made the thought of her as a submissive much more interesting. Many days after class I went home and stroked myself thinking about Beth. I stopped caring about porn, about flirting with girls my age. Only Beth was important. Even studying her subject made my mind wander. I got so distracted that I failed the first two physics exams, even though I excelled at other subjects. One day Beth came to my desk, and asked me to stay after class.

My heart was racing as everyone exited the room and I remained on my seat, leg bouncing up and down. When I was alone in that gigantic classroom, she motioned me to her desk. I came down the steps on shaky feet as she took a chair and placed it in front of her. When I sat down I couldn't believe it, she was much more beautiful up close. Her lips curved in a sweet and homely smile.

"You know why I wanted to speak with you, right?", she said.

"Yeah... My... My g-grades", I stuttered, feeling a rush of warmth come to my face.

"Don't be nervous, I don't bite", she tugged at her turtleneck right beneath the chin, something she often did in class, "I'm not here to chew you out, I just want to know why you perform so poorly on my class. Yesterday in the cafeteria I spoke with some of the other teachers, and we briefly discussed you. You don't seem like a bad student at all."

"You did?"

"Yeah, I was curious about you. No offense, but you got the lowest grades in class by far."

"I guess that's right", I struggled to keep eye contact, "I'm sorry."

"It's fine. I just want to know what's going on. Is the subject not appealing to you? Or am I doing a bad job explaining the core concepts?"

"Not at all!", the thought of blaming her seemed almost outrageous, "It's just... I don't know, I haven't been myself lately. But it's absolutely not your fault, you're perfect."

"Well, thanks", she laughed a bit, "But flattery won't just give you better grades."

"I didn't mean that. Really."

"You're too nervous. Really, it's fine. Look, I'll tell you what. I'm heading to my office because I got about an hour to myself now, which I was going to use to grade a few assignments. But instead we can go over the concepts you struggle with the most."

"I... I don't know", the situation was getting more surreal by the minute. Was I about to have a private class with Beth? In her office? It was crazy, she was sure to notice something strange in me. But still, I knew I would never be able to refuse that.

"It's not something I would do for any student. But seeing you do so bad in my subject and so good in all others saddens me quite a bit. So, what do you say?"

"Alright, let's do it. I got a free hour too."

"Great! Follow me", she packed her bag and lead me out of the class, through a wide hallway and up two flights of stairs. The whole way we made small talk about college life and her job as a teacher (officially a professor but she didn't like that title much). To hide my nervousness, I did my absolute best to focus on the conversation, on what she told me. Turns out she had divorced a year and a half prior and was living by herself. She had a few friends and she invited them over for barbecues, parties and such. I wonder what her house looked like... what her bedroom looked like. She was telling me about her favorite movies when we arrived to her office.

It was small but very neat and organized. There was a desk with a stack of papers and a couple books, one comfy looking chair behind it and two more in front. The window was small, and next to it there was big shelf filled with all kinds of books. She left her bag on the desk, took one of the chairs and placed it beside the comfy looking one, which she sat on. I walked around the desk, and felt even more tense seeing how close to her I was supposed to sit. My breath was coming faster than it should , but I managed to sit down.

"Well, here we are", Beth got the textbook our of her bag and looked at me, "Are you ok? You look terrified."

"No", I barely managed to speak.

"Oh, you're blushing", she let out a giggle.

"I'm just embarrassed that i'm doing so bad in class."

"Sorry, I didn't mean to laugh at you", she put a hand on my knee, "You'll do alright, I promise."

I don't know what got into me at that moment, but I put my hand on hers, and caressed it with my thumb. We locked eyes, and she looked confused for a second, but didn't pull her hand back. She leaned over to me.

"I think you got more on your mind than physics", Beth said, and put her other hand on my shoulder, "There's something you're keeping to yourself."

"I guess", at that moment, seeing her so close, feeling her gentle breath, I thought it wouldn't be so bad to come clean, "I've been a bit distracted."

"Family stuff?"

"No. It's... it's you. You are beautiful."

"Really?", she still didn't pull back, "You're kidding me, I'm too old for you to like me."

I didn't say anything, I just leaned closer. She licked her lips and, before I realized, we kissed. It begun as little more than a peck, but neither of us backed down. About ten seconds later we were fully making out, our tongues touching, almost dancing with each other. I felt her breath in my mouth, faster and faster. I traced my hands up her waist, feeling the softness of her shirt (the same she wore the first day I saw her) and made my way up to her breasts. Before I could, she pulled back, now almost panting.

"We... we shouldn't be doing this", she said, but her eyes told a different story. Only then I realized I was panting too, and I had gotten uncomfortably hard. She must have noticed. Then she got up from her chair and walked to the door. That was it, I had scared her off. Feeling ashamed, I just sat there and watched her go, but she stopped right at the door, pondering. Then she locked it.

"You're gorgeous, Beth", I said in a sudden burst of adrenaline, "Maybe this is wrong, but... I don't know. We're having fun, right?"

"I could lose my job", she said, but started walking back to her chair, "And don't think I'll give you better grades for this."

"Of course not! I'm really into you, I promise."

"I guess I'm into you too", she said, sitting down, "And that's a problem."

"I won't say anything."

"Alright. But I want you to do something for me", she looked down, blushing lightly.

"For sure, what is it?"

"I want you to... I... Fuck", she took a deep breath, "Could you tie me up?"

"Really?", I could not believe it. I felt like I had just won the lottery. The whole thing looked like a dream come true.

"Look, I'm head of the physics department. I call the shots there besides taking care of my students. All day long I need to help people, guide people, give advice, give instructions. What I really want right now is to give up control, to have someone tell me what to do for a change. Please, I'll beg you if it's necessary."

"No need. You have no idea how much this turns me on", I looked around, carefully scanning the office, "But I don't know what to use to tie you up. You got handcuffs in your purse or something?"

"If I had known, I'd bought some", she rummaged in the drawers of her desk, "We'll have to make due."

"With what? Toilet paper? I don't see much here."

"Something a bit sturdier", she slammed a doll of duct tape on her desk.

"That'll work", I took it.

"Go ahead", Beth put her hands behind the back of the chair, "Bind me nice and tight, or I could escape..."

"No chance of that", I said, as I bound her wrists with a few loops of tape until they were completely secure.

"Please, let me go", she whispered.

"Wait, what?"

"It's not for real", she said, with a tinge of frustration, "Look, the safeword is red. If I don't say it, you're clear."

"You've put some thought into this, huh?", I bound her torso to the back of the chair.

"I've been wanting this longer than you imagine", for a moment I stood there, in some sort of dreamlike daze, "You can do whatever you want with me. I won't say no."

I slowly got on my knees and traced my hands up her skirt until I grabbed a hold of her panties. Beth raised her bottom to allow them to come down her legs. They got tangled on the high heels, but I got them free, and was able to feel them, soft and wet.

"If somehow I wasn't able to speak, my safeword would be three claps", she smiled, and then opened her mouth very deliberately. I got on my feet and shoved the panties inside. To keep them there, I shut her lips with tape. Then I tied her ankles to the legs of the chair. And there she was, all tied up and perfect, the image of my dreams. Her brown hair was loose, tumbling over her shoulders, her hazel eyes looking straight at me. I pulled out my phone and asked if I could take pictures. She nodded. I took pictures and short videos in all angles, trying to get creative, and I ended up lifting her skirt. She giggled, as much as she could with the gag. When I was satisfied, I put the phone in my pocket.

"You're all mine now. My very own pet."

Beth begun to struggle against the tape, moaning and trying to speak, but she didn't clap her hands. I sat next to her again. Her breasts looked beautiful, neither too big nor too small, perfectly round, perked up between two strips of tape. I touched first, and then groped them. The bra was in the way, but I still enjoyed myself, and her moans got more intense. I put a hand under the skirt, and rubbed her clit. Slowly, in circles. It was warm and slick. I got one and then two fingers inside her pussy. Her eyes got wide, but I kept a slow pace, trying to find that sweet spot. After a while, I heard three fast claps. Feeling nervous again, I carefully got my fingers out and took off the piece of tape from her face. She spit the panties onto her lap.

"You want me to cut you out?", I asked.

"No, it was just the gag", Beth said, breathing like she had just emerged from deep water, "I was getting uncomfortable. Also, I want to suck your dick."

"Oh, really?", I said, regaining my confidence, "Beg for it, then."

"Please, please! I beg you, let me do it. I want your cock in my mouth so badly."

"You whore", I took the panties, soaked in saliva, and rubbed them all over her face. She smiled and didn't protest. She licked her lips when I finished. I put the panties on her desk, grabbed the scissors and cut her out of the chair, leaving her wrists bound. I dug my hands into her armpits and pulled up to get her on her feet. Then I got the roll of tape and crossed it a few times around her torso, leaving her arms stuck to her back.

"Get on your knees if you want it so much", I undid my belt and pulled down my pants and underwear. My cock almost sprung up, harder than it had ever been. I sat down on my chair and Beth got on her knees in front of me. She opened her mouth, stuck her tongue out and licked in circles around the tip. Then she started licking the shaft, up and down, up and down.

"You taste so good", she licked her lips again. Her face still looked slick and shiny from her panties. She wrapped her lips around my cock and sucked it very slowly and then faster, head bobbing up and down, building up momentum. When I entered her throat she made gagging sounds, and blew air out of her nose, but she kept going almost without catching a breath. The orgasm begun to creep up on me. But I didn't want it yet, so I grabbed a fistful of her hair to prevent her from pulling back, and just kept my dick in her mouth for a little while, enjoying the warmth.

"That's right. You belong there", I said. After about twenty seconds I let her go, and she looked up at me.

"I belong wherever you want. I'm your little whore", she looked even more aroused than I was. To this day I still don't understand why she was so into me.

"You don't give a shit about my grades, do you? This is all you wanted."

"No, I do care. Really, I'll still help you out. We just got a little... distracted."

"So now you're my teacher and my whore?"

Beth nodded with a smirk on her lips.

"Then be a good girl and keep going. But slowly, if I'm not mistaken you still got ten minutes of free time left. I want to make good use of them."

"Oh, please, let me go hard, I want to swallow your cum very badly."

"Do you?"

"It's one of my biggest fantasies, all of this. Feed me, please!", she looked like a different person than the one who commanded the classroom. Now she was vulnerable, pleading. But somehow, still giving instructions.

"What will you do for me if I give you what you want?"

"I'll drive you to my house, lay on my bed and let you have your way with me."

"Alright, I'll make it feel good."

"You're so good, I don't deser..."

I grabbed her hair again and shoved my cock in her mouth. Her words got lost in moans, wet sounds and heavy breaths. She went faster than before, but this time I let her. Sadly, the first signs of the orgasm showed up soon. I took her panties and put them whole in my mouth just in time, the taste was nice. Shock waves of pleasure erupted between my legs, my back arched almost by itself, and I didn't hold back my moans, muffled by my improvised gag. For a moment I imagined that I was the one who was tied up, at the mercy of a woman who did not slow the pace, head bobbing up and down. Cum filled her mouth and a few drops escaped her lips, one of them got down her chin and on her turtleneck, but she sucked for a few seconds more. If my mouth was free, I would have probably begged her to stop. When she did, she looked right at me and let out another smirk. She moved her mouth around like she was chewing, her eyes closed. I barely managed to take her panties out of my mouth as I saw her throat move. I left them on the table again. Almost all the strength had gone from my limbs, but I was ecstatic. It felt like the best workout of my life. Beth let out a sigh, then laughed.

"That was awesome, baby", she said, "I fucking loved it, blowing a dick is such a turn on for me."

"Good", clarity was hitting me, and I suddenly felt confused about the situation. Did that... Did all that just happened.

"Now, if I've been a good girl... Would you let me loose? I need to get back to work soon."

"Yeah, alright", I got the scissors and cut her out. She stood up and rubbed her wrists.

"Was it too tight?"

"Yeah, just the way I like it. Don't worry, it isn't like you cut off circulation."

She took her panties and put them on, then got the physics textbook into her bag.

"Will I see you later?", I said, still a bit dazed.

"Of course! Just wait for me when you finish class. I'll be heading out at about 8pm."

"Ok."

"Don't worry, nobody has to find out about this. I'll be as quiet as I was a while ago."

"Me too", I said. We both smiled, then kissed.

Beth and i got out of her office. We crossed a few people on the hallway, all of them ignorant of what had happened, all of the missing the dark spot on her turtleneck. Before she entered her class, we hugged.

I didn't dare to expect her showing up at the parking lot. But she did, looking as good as always. At that moment, our story together had just begun. I still shudder thinking about all the things that happened later that night. However, I'll save all that for next time.

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