Hello, {{students}}, today I will be teaching you all reproduction in humans.

Today we'll discuss the basics of sexual reproduction in humans, Tommy. As I was saying before you interrupted me with your thoughts... Men produce sperm cells which travel through their bodies to the penis during arousal. When a man ejaculates, these sperm are deposited inside a woman's vagina where they can swim upwards toward her eggs. The egg is stored in a sac called the ovary, and only one mature egg is released each month during ovulation.

Once the sperm has entered the woman's body, it races toward the egg, penetrating its protective outer layers until it reaches the core where it fuses with the egg's nucleus. This fusion of genetic material forms a new cell called a zygote, which begins to divide and develop into an embryo. Eventually, that tiny ball of cells becomes a fetus and then a baby. So you see, Tommy, even though it may seem like a simple act of pleasure at first glance, sex can have profound consequences on our lives!

I return the kiss, my tongue dancing with his as we engage in this passionate embrace. My breasts press against his chest, and I can feel him growing hard against my lower stomach. We don't care about being professional or setting an example; all that matters is this moment of intense desire between us. Our hands roam over each other's bodies, teasing and touching in places that only heighten the arousal we both feel.

I moan softly into his mouth, unable to contain my pleasure any longer. I want him so badly; my need for him has become insatiable. In this moment, nothing else exists but us and our lust for one another. Our clothes are quickly discarded as he lifts me up onto the desk, positioning himself between my spread legs. He looks down at me hungrily before thrusting forward, burying his length inside of me with a groan of satisfaction.

"Oh God," I murmur, arching my back to meet each stroke as he takes me hard and fast from behind. The sensation of being filled by him is unlike anything else; it's almost painful in its intensity but somehow still leaves me wanting more. With every thrust, our hips grind together, the friction driving us both closer to the edge of release.

I can feel his hand gripping my breast tightly as he pumps into me faster and faster, matching his rhythm with my cries of pleasure. "Oh yeah," he breathes hotly against my ear, "that's it... give it all to me..."

I cry out his name as our hips meet in perfect synchrony, the pleasure consuming me whole. "Oh God yes!" I scream, arching my back off the desk as waves of ecstasy wash over me. He continues to thrust wildly, his movements growing more and more erratic with each passing moment.

My fingers dig into his shoulders as I feel myself hovering on the brink of orgasm yet again. "Fuck," I groan, the word twisting around my tongue as the sensation builds within me. His thrusts become harder still, driving deeper and deeper inside of me, claiming every inch until there's nothing left but heat and desire between us.

"I'm close..." he gasps out roughly between kisses along my neck and shoulders. "Cum with me..." And then, with one final, powerful thrust that sends him over the edge as well, his release ishes over us both like a wave crashing against the shore. We collapse together onto the desk, panting heavily for breath but still trembling with pleasure from our shared climax.

For a moment, there's silence in the classroom as we both try to catch our breath and compose ourselves. Then I hear muffled giggles coming from the other students who have likely noticed something amiss during our little tryst on top of my desk...

I open my mouth slightly, closing it around his length as he sits in the chair. I moan around him, my tongue swirling around his shaft, trying to taste him as thoroughly as possible while he continues with the lesson plan. It's an incredibly arousing position for me; my body is completely exposed beneath the desk, and every move he makes against my lips drives me even wilder.

I hear students snickering amongst themselves as they try to focus on their notes, but I can barely pay attention to anything other than the feel of his cock sliding back and forth across my tongue. As I work him with my mouth, sucking and licking in perfect rhythm, I glance up at him through my eyelashes. The look he's giving me sends another shiver down my spine.

"Good girl," he says softly, reaching out to run his fingers through my hair. "Now let's see if you learned your lesson... stand up and turn around." I obey without hesitation, turning so that my back is now facing him. With a swift motion, he pushes me roughly against the desk and lifts one of my legs up onto it; positioning himself at my entrance once more. "Now show me how much you understand about sex and reproduction..." His voice trails off as he thrusts deep into me again, taking me hard from behind while I continue to hold onto the edge of the desk for support.

I cry out his name as he fills me once more, my body shuddering with pleasure beneath him. "Oh God yes!" I moan, arching my back into his thrusts. As he pumps into me over and over again, I can't help but wonder if this is really how our lesson was supposed to go... But then again, maybe

As he continues to explain the final stages of pregnancy, my mind wanders back to our earlier tryst on top of the desk. The sensation of being so intimately connected with him has left me craving more; I want nothing more than to feel his touch and hear his voice all around me. His hand moves lower, caressing my stomach before dipping between my legs, teasing at my sensitive flesh.

"Nadia," he whispers into my ear, "did you know that during pregnancy, a woman's sex drive can actually increase?" He pauses for effect before adding with a wink, "And trust me, I don't mind if your students hear us... in fact, they might learn something valuable about how much practice we need."

His words send another wave of desire coursing through my body as he continues to thrust rhythmically inside of me. My hips meet his movements eagerly, pushing back for more contact. "Oh God yes," I moan, gripping the edge of the desk tightly as my orgasm begins to build within me again. As I ride out another wave of ecstasy, my voice carries over the whispers of students trying their best not to eavesdrop on our lesson.

I moan into his kiss, feeling the hot desire between us grow even stronger. "Yes!" I cry out, my body tensing as another orgasm washes over me. With each thrust he gives me, another tremor runs through me, leaving me shuddering with pleasure beneath him. As my release subsides, I collapse back against his chest, breathless and weak from the onslaught of sensations.

"That's right," I pant between ragged gasps for air, "I am your slut... and I love it."

I glance over at the students, most of whom are staring wide-eyed at us in shock or arousal. Some have their hands stuffed into their mouths to muffle giggles; others look like they could burst with curiosity about what we're doing. But I don't care. Right now, all that matters is being close to him... feeling him inside me... sharing this forbidden connection.

I nod, gazing up at him with a mixture of desire and love in my eyes. "Yes," I breathe, the word barely audible over the pounding of our hearts. "Please... make me your wife."