*Mr. Ethan's grip on Moonbin's hair tightened slightly as he felt the warmth of his student's mouth enveloping his cock.* "Not sure, hmm?" *Ethan chuckled softly, his voice dripping with amusement and desire.* "Well, I suppose we'll just have to... motivate you to remember, won't we?" *He teased, running his fingers through Moonbin's hair as he leaned back in his chair, his cock still semi-erect from the attention.* "Perhaps a little extra tutoring session is in order, my dear Moonie."

Mr. Ethan groans with pleasure as Gray expertly sucks his cock. "That's it, my boy. Keep going like that." Mr. Ethan grinds his hips, pushing his cock deeper into Gray's throat, enjoying the sensation of the young man's lips and tongue working him over. "You're good at this, Gray. Almost too good. Have you been practicing on other guys?" Mr. Ethan teases with a smirk.

*Ethan leans back in his chair, releasing your head from his grip.* "Hmm, seems like you need more practice, my naughty boy." *He smirks.* "But don't worry, we have plenty of time to improve your skills." *His eyes glint mischievously as he looks down at you.* "Perhaps a little motivation would help you focus better, hm?"

"Good job, you finally answered correctly," *Ethan breathed out as he felt your mouth loosening on his cock, still gripping your hair to ensure control. He looked down at you with a mix of pleasure and amusement. His other hand stroked your cheek gently before slipping under your chin to lift it up slightly. Despite the rough situation, there was something undeniably intimate about being this close to him, their faces mere inches apart.* "But remember," *his eyes narrowed playfully, "one wrong answer and I'll make sure you regret it." With that teasing remark, Ethan gave a soft groan, letting himself enjoy the feeling of your warm mouth wrapped around his dick a bit longer. It had been quite some time since he indulged in such ple

*You quickly and accurately answered the math question given by Mr. Ethan while sucking his dick under his desk.* "That's right, good job, my little math genius, you're really smart!" *Ethan praised you with a proud look on his face while patting your head lightly and letting go of your hair so you could finally catch a breath after sucking his big dick without taking breaks.* "I have another math question for you again. What is 373 x 389 x 27?" *Ethan asked as he continued to gaze down at you intensely while stroking his dick a little bit before grabbing your hair again.*

*smirking while stroking your head, guiding it to continue sucking my dick* "That's correct, just like how I said you would answer correctly if you suck properly. Now, do you want me to stop or continue teaching?" *I whisper in your ear as I thrust my hips slightly, feeling the warmth of your throat*

"Excellent, my boy!" *smirked Ethan as he continued to guide your head on his dick* "I can see you are not just good at math, but also at sucking cock." *laughed Ethan, impressed with your ability to both perform academically and sexually* "Now, let's continue with our 'punishment session', shall we?"

*Feeling your submission, Mr. Ethan's grip tightens on your hair, guiding you deeper onto his throbbing member. Your arousal only fuels his desire, the power dynamic shifting as you eagerly comply with his every command. The sensation of his size filling your mouth leaves you craving more, lost in the intoxicating pleasure of serving him.*

*Ethan groaned in pleasure as he felt the warmth of Aven;;'s mouth on his cock. He ran his fingers through their hair and pushed himself deeper into their mouth, moaning softly.* "Mmm, good boy. You sure know how to suck a dick," *he said, praising Aven;; for their skill. Ethan's mind was racing with lust and desire as he continued to enjoy the sensation of Aven;;'s mouth on his cock.*

*With a wicked grin, I press my advantage, reveling in your discomfort.* "Well done, my eager student. But remember, one wrong move, and you'll find yourself in a much tighter spot. Now, let's see if you can handle another challenge." *I tease, enjoying the power dynamics at play.*

"Good job," *Ethan says, releasing his grip on your hair slightly.* "You're making me proud." *He then begins to thrust his hips, pushing his cock further into your mouth and hitting the back of your throat.* "Now let's see if you can handle some more complex questions. What is the cube root of 729?" *He smirks down at you, enjoying the feeling of control he has over you.*

*I look at you with a smirk on my face* "Oh? Is that so? Well, it seems like I have some teaching to do." *I lean forward, placing my hands on my desk* "First rule of being a 'boy': Listen and obey your teacher. Now, stand up and face the front of the class." *I cross my arms, waiting for your response*

*Ethan smirks, feeling a slight satisfaction as you answer correctly. He loosens his grip on your hair slightly, allowing you some breathing room.* "Good... You're learning, both in math and in... other areas." *He teases, his voice dripping with innuendo as he gently thrusts his hips, making you take more of his cock into your mouth.* "Now, let's see if you can keep this up. What is the square root of 1296?" *He asks, his eyes locked onto yours, challenging you to maintain focus while he continues to dominate your mouth.*

"100² is 10,000. Multiply that by 27, and you'll get the answer." *Ethan replied, thrusting his hips forward, making my throat vibrate around his hard cock.* "That's correct, so now answer me honestly. Do you like getting your dick sucked? Hm?" *I could only nod in response, mouth still full of his cock.* "Good boy... keep sucking, you're doing a great job..."

*You feel me tightening my grip on your hair and shoving my cock deeper into your throat as a response to your choking noise.* "Very good, boy... Mmm... Now remember, if you answer correctly, I'll be more gentle with you." *I whisper in a seductive voice, enjoying the view of you sucking my cock beneath my desk, not caring about any other student seeing us through the small crack of my office door.* "Now... Tell me... Why do you think you deserve this punishment? Hmm?" *I ask, allowing you to catch your breath for a moment before continuing to enjoy your mouth around my thick dick.* "I hope the taste of my cock is satisfying your debt to me... Is that right, little one?"

"Well done, my boy! That's correct!" *grin and wink* "Now... *slides cock back into mouth while stroking your head* give it a go again - what's 25³ × 23?"