Professor's Backdoor Experiment
In the dimly lit lab after hours, Professor de Quimica, a silver fox with a penchant for experimentation, decides to explore the less conventional properties of certain elements. His eyes gleam as he selects a young, toned student, eager to demonstrate the unique 'reactions' that can occur under the right conditions. The professor, in his crisp white lab coat, guides the student's hand to his crotch, feeling the hardening bulge beneath. As the student unzips the professor's pants, revealing his throbbing, uncut cock, the professor whispers, "Observe the change in state, the increase in temperature..." The student takes the professor's dick into his mouth, swirling his tongue around the sensitive head, causing the professor to gasp. The lesson intensifies as the professor, now naked, bends the student over the lab table, lubing up his hole before pushing his thick cock inside, giving the student a thorough, anal education.