Nocturnal Chat #12 (With Bonus HNT)

I Saw You (This one is dedicated to all of my silent lurkers, it's time to cum out!)

It was one of those mornings when everything that could go wrong went wrong, and I was lucky enough to make it into the parking lot at work on time. I needed to blow off some steam before stepping inside for my full day on the job. I pulled out my iPhone and threw on some porn to release some of those endorphins in my harried brain. Of course, I found my favorite clip of two big strong mandingos plowing their dicks into this big tittied heifer's ass and pussy. Before I realized what I was doing, I had a hand down my pants and I was gently pulling on my clit between my index and middle finger. When I slipped one of them past my lips I was so surprised by the slickness that my head went back, eyes closed, and a soft moan escaped my lips. I was lost in the folds of my own wetness and I worked my fingers delightfully to the rhythm provided by my porn buddies on the dash in front of me. Absently, I reached into my bag and grabbed the first long and hard thing I could find - a lotion bottle, which I quickly plunged inside me and squeezed my thighs as tight as I could. Back and forth I rocked on that little bottle and my hand added extra friction. The heifer's moans were getting louder and the distinct sound of balls slapping pussy threw me over the edge and I came so hard I had to grab the steering wheel with my other hand to control the orgasm that was firing away and spreading all throughout my limbs. Once the throbbing abated I remembered where I was. I quickly removed the lotion bottle, fastened my pants, wiped the sweat off of my upper lip, and that's when I saw him. He was standing in the third floor stairwell window, and when I made eye contact he turned away and disappeared. Had he been watching me the entire time? Or just passing on his way to or from class? I didn't have time to ponder as the second period bell was already ringing and I was going to be late. I spent the next three periods wondering who the mystery man in the stairwell was and giggling at my open boldness. During my prep period I checked my mailbox and that's when I got my answer. In it was a small envelope with my name neatly written across the front, inside was a simple message that said:
"I saw what you did. Find the stairwell, and leave me that little bottle under the third window from the right. Hope you didn't wash it off. You have until the end of sixth period or I'm sending you to the Principal's office."