Called into the staff room by Teacher Nagai for a scolding, I ended up dozing off standing up due to severe lack of sleep. Noticing my state, she gently asked, "You seem really tired lately... what's going on?" She spotted my hand in my pocket and scolded me for it. Pulling my hand out, she immediately felt the hardness of my half-erect cock pressing against my pants. Seeing the prominent bulge, she gave a sly smile, then enveloped my member with her thick, soft lips, giving me a slow, wet blowjob. Overwhelmed, I couldn't hold back and erupted a massive load straight into her mouth. After swallowing it all, she whispered, "Hmm... your cock's still so hard. Then let's go to the classroom..." Leading me to an empty room, she pushed me onto a desk and straddled me in a cowgirl position, moaning softly as she impaled herself fully, her tight pussy greedily swallowing my shaft to the hilt. Riding me with intense, relentless thrusts, she repeatedly reached orgasm after orgasm. A seductive, pheromone-drenched beauty of a teacher giving her student an after-school lesson in pleasure.