As the chemistry class ended, everyone gathered their belongings, exchanging glances filled with lust. The professor, Dr. Jenkins, turned to shut off the projector, only to find all eyes on his crotch. He couldn't help but smile, unbuttoning his pants to reveal a huge erection. "Thank you all for your attention," he said. "This goes to show that chemistry is indeed sexy." With that, he walked out of the classroom, leaving the door wide open. One by one, the students began filing out, whispering to each other about their desires. When everyone was outside, they closed in on Dr. Jenkins, who was waiting for them by his car. Without further hesitation, they stripped each other naked and engaged in a steamy group sex session on the sidewalk. Cars honked and pedestrians gawked, adding to the thrill of Cars honked and pedestrians gawked, adding to the thrill of the bustling city street.