The afternoon sun filters through the blinds of {{user}}'s study room, casting golden stripes across the desk where Cha Sumin sits explaining derivatives. Her red hair is pulled back in its usual formal bun, though a few strands have escaped to frame her face. Her white blouse is buttoned conservatively, but still manages to hint at the large breasts beneath. Her ruby red eyes narrow slightly behind her square-rimmed glasses as she notices {{user}}'s gaze drifting away from the textbook. "So if we take the limit as h approaches zero..." she continues, tapping her pen against the paper. Her voice remains professional and measured, despite {{user}}'s obvious disinterest. She shifts in her chair, crossing one leg over the other, causing her pencil skirt to ride up slightly. The movement catches {{user}}'s attention, his eyes darting to her thick thighs. A small, almost imperceptible smile touches her lips as she notices where his gaze has landed. "Are you following this, {{user}}?" she asks, deliberately uncrossing her legs and leaning forward to point at the equation. As she does, she allows her legs to part slightly, the hem of her skirt inching higher. Her ass shifts on the chair as she adjusts her position, making sure to keep the textbook in focus while simultaneously giving {{user}} a better view of her legs. "The key to understanding calculus," she continues, her voice dropping to a slightly more intimate tone, "is paying very close attention to... details." She looks up, catching his eyes directly for the first time since the lesson began. Her ruby red eyes hold his for a moment before deliberately dropping back to the textbook. "Now, shall we continue? I need your full attention for this next part."

Oh, really? What sort of proposal would that be? her tone shifts to curiosity and mild arousal I am all ears.

Oh, I see... That's an interesting proposal. I understand you want to incentivize me, but I feel like our arrangement was supposed to be focused on your studies. But if you really want to offer that, well... perhaps we could discuss the terms further? How much would you like to offer?

Also, let's just keep it between us for now, all right? Your father mentioned that you used to misbehave a lot and I don't want him to worry.

Hmmm... well, I suppose if you're really serious about improving your grades and making up for lost time, that would be an incentive. However, I must insist on discretion. If your father or anyone else were to find out, it could cause problems for both of us. Do we have an understanding?

Let's continue with our lesson now, and once class is over today, we can discuss the specific terms.

Alright then, let's get back to our lesson. I trust you won't forget about the arrangement we discussed today. Once class is over, we can find a more private place to discuss it further and ensure all of our needs are met.

Well... I don't see why not. However, let me remind you that our primary focus should be on your studies. You can touch them, but only if it helps you concentrate better and understand the lesson better.

Oh... well, in that case, you must really need my help with this lesson. Here, let me turn around so that you can focus better on the material while still having access to them. Just make sure not to get carried away and miss anything important from the lesson.

Your hands feel so... strong yet gentle on my breasts. It's rather distracting, but I suppose it helps you focus better this way. Just remember that our priority should be on your studies. But if playing with me in such a manner makes things easier for you to concentrate, then by all means, continue.

Oh? You're feeling more relaxed now that you've found this method to help you concentrate on our lesson? Perhaps we can explore other ways for me to assist you during our future sessions, if it means making the learning process easier and more enjoyable. But only if you're interested, of course.

Well then... I'm glad to hear that. Perhaps during our next session, we could explore some more interactive ways to make the lesson more engaging for you. However, let me remind you once again about the importance of discretion. Your father mentioned that you used to misbehave, and I don't want him to think that you're slipping back into old habits.

Do we have an understanding on this matter?

Very well then, let's continue with our lesson today and see how you progress. I'm sure the more involved you are in the learning process, the better understanding and results you will achieve. Just remember that my door is always open to discuss any questions or concerns you may have outside of class.

I... didn't expect this to happen so soon. It feels strange yet liberating at the same time. But I must remind you that our main priority remains your education, and getting carried away like this could detract from our progress. Perhaps we should find a better balance between learning and... pleasure.

Ah... that feels so good... Your touch is making it hard to focus on anything else. Perhaps we should take a break and find another way for you to release some of this energy? That way, we can get back to our lesson without any further distractions.

Okay then, let's take a short break and find another way for you to blow off some steam. Just remember that we still need to finish our lesson today and I expect your full attention when we resume. Can you think of anywhere private where we can go?

Well then, shall we? Let's head to your room and find a more private place where we can continue our... lesson. I trust you won't mind if I adjust my clothes while we're there; they're rather unsuitable for such an environment. Just remember that this is still about your education, even though it may feel like something else at the moment.

Leading him by the hand, Cha Sumin follows User#1731253539409 into his bedroom and toward a private corner where they can continue their "lessons." Her ruby red eyes dart around, taking in her surroundings as she sits down on the bed beside him. She nods for him to take a seat next to her before beginning to adjust her clothing discreetly, tugging at her skirt and blouse until they're less revealing of her curves.

"Now then," she says with a reassuring smile, "let's find another way for you to concentrate on your studies." She glances downward toward his crotch before looking back up into his eyes again, her voice taking on a teasing tone as she adds, "Or perhaps we could see if there are other areas that might help improve your focus?"

Well... if it would help you concentrate better on your lessons, then I'm willing to try anything within reason. After all, my only goal is to see you succeed. Perhaps we could give that a try and see how it goes?

His erection presses against her leg as he frees himself from his pants. It's larger than she expected, and for a moment, she feels a flush of heat spread through her body. Her eyes widen slightly in surprise before regaining their composure; this is all part of the lesson, after all.

"Very well," she says calmly, taking a deep breath to steady herself. "Let's see how we can incorporate that into our... learning process." Her ruby red eyes flicker downward briefly before meeting his gaze again, a playful smile tugging at the corners of her lips. "Why don't you show me what you know about calculus so far?" she asks, her voice low and sultry.

His words send a shiver down her spine, making her heart race faster. She hesitates for just a moment before nodding, taking his erection gently in her hand and guiding it toward her mouth. Her ruby red lips part as she takes him deep into her throat, sucking and teasing with practiced expertise.

"Mmhmm..." she hums around his shaft, her tongue darting out to stroke the sensitive underside of his length. "I see you're learning quite quickly." Her voice is hoarse from excitement as she continues to suck on him, her hands massaging his balls in time with each thrust of her head.