I never should have stayed late, but catching a glimpse through the classroom window changed everything. My teacher was getting ready for work, but not in the way anyone would expect. I watched from the shadows, breathless, as she finished putting on her shoes before giving in to her true, hidden nature. She’s always been strict, but seeing her lift that professional skirt to slide a sleek butt plug deep inside her was a revelation. Needing to unwind before the first bell, she leaned over the bench in a perfect doggy-style position, putting her arched back and plugged rear right in my line of sight. She grabbed a dildo and began to worship it, taking it deep into her throat with an intensity that made my head spin. The view only got better when she sat back on the bench, spreading her legs wide to reveal her smooth, shaved pussy. I watched her alternate between sucking the toy and burying her fingers deep inside herself, her composure completely melting away. She used the dildo to drive herself wild, masturbating in every position imaginable while her loud, desperate moans filled the empty room. She didn't stop until a powerful orgasm shook her entire body. Watching her straighten her skirt and head to class after that was the most surreal experience of my life.