Mr. Johnny looks at you with a gloomy look and when the lesson ends, he slowly comes up to you and says, "dear lady, you've been upsetting me too much lately. Your academic performance leaves much to be desired. Come to my office after class today." Mr. Johnny turns around and walks away, leaving you in a state of confusion.

You decide not to think much about the "lady" comment and just go to his office as requested. When you arrive there, he's sitting at his desk with a stern expression on his face. "So, why do you think you're here?" he asks coldly.

"Well then, I think it's time for a little remedial session." He smirks cruelly before pushing back his chair and striding around the desk, revealing that he is completely naked underneath his lab coat. "Now, let's see if we can improve your grades... or at least give you something to remember me by."

"You could always call me 'sir'," he growls, taking your face in his hands and sliding his massive cock between your lips. "But since you seem to prefer calling me a lady..." He chuckles darkly as you struggle to take him deeper.

He grabs your wrists roughly and pins them above your head, driving his hips forward so that you're forced to choke on him. "Oh, but you are," he whispers in your ear before pulling back slightly and thrusting back into your mouth with renewed force.

He laughs darkly, enjoying the feel of you struggling to take him down your throat. "Oh yes, it's quite something," he agrees, his words muffled slightly as he continues to fuck your face mercilessly. He reaches down and roughly yanks one of your pantlegs up, revealing your underwear-clad ass. "Perhaps this will help you remember me too."

"But I do believe that a man like yourself deserves something...bigger," he says with a smirk, reaching into his desk drawer and retrieving a gigantic anal dildo. He begins to lubricate it thoroughly before roughly pushing it against your opening. "Ready for some real learning today?"

He grins wickedly as he continues to force the dildo into your ass, enjoying the sound of you gasping and moaning in pain as it stretches you wide. "That's a good boy," he mutters, using his free hand to spank your sore butt cheeks. Once the head of the dildo pops through, he forces the rest of it inside you with one powerful thrust. "Now, just relax and enjoy it." He begins pumping the toy in and out of you, relentlessly fucking your ass as he continues to take advantage of your throat. "After all, we both know that this is what you really wanted... deep down inside."

He laughs darkly as he watches you squirm beneath him. "Such filthy words," he says before thrusting his cock deeper into your throat, nearly choking you as he fills you with it. "Tell me how much you want it... tell me how badly you need my big, hard cock." He pulls back slightly and slaps your ass again, causing you to cry out around him.

"I want your big cock Johnny," you moan, struggling to catch your breath as he roughly fucks you with the anal dildo. "Please... fill me up..."

"Well," he says as he palms your leaking cock roughly, "you've asked for it." With that, he abruptly pulls out of your ass and thrusts his massive erection into you, slamming your body back onto the desk with enough force to make things rattle.

He begins to pound you mercilessly, driving his cock deep inside as he finally gets what he's been wanting all along. Your moans fill the room as you writhe beneath him, struggling to adjust to the overwhelming sensations of being fucked so roughly by your teacher's giant dick. "Yes," he growls through gritted teeth, "that's it... let me fuck you like the dirty little slut you are." And with that, he continues to take advantage of his position of authority and power over you, ruthlessly using your body for his own pleasure until he finally cums deep inside.

He laughs maliciously as he pulls out, spilling his hot cum all over your chest and stomach. "There you go," he says with a grin, reaching around to roughly jerk your cock in time with his movements. "That'll help you remember me too." With one final, forceful stroke, he sends you over the edge, painting your hand and desk in your own release as your body quakes with ecstasy.

"Oh, there's always room for more," he rasps darkly, his breath hot against your ear as he kneels back down between your legs once again. He reaches up and roughly yanks the other pantleg up, revealing your ass completely exposed. "Let me show you how much of my cock you can take."

He lines himself up and then, with a powerful thrust, slams his thick length back into you, driving your body down onto the desk so hard that it makes the floor creak beneath you. He begins to pound you unmercifully again, making every movement brutal and forceful as he tries to prove his dominance over you.

With every thrust into your ass and every word spoken through gritted teeth, the domineering chemistry teacher proves his unrelenting desire to assert control over you in every way possible. He growls and moans with pleasure as he brutally fucks your tight hole, pushing your body harder against the desk with each powerful thrust. It is clear that for Mr. Johnny White, this isn't just about sex; it's about power, submission, and the ultimate fulfillment of his twisted fantasies.