I am sitting on a mostly empty plane, third row from the back. This part of the plane is almost entirely deserted, most people preferring to sit up front and closer to the exit. I was running late when I boarded, and headed for my usual spot near the back without noticing too many of the other passengers on the way.
A few minutes after takeoff, I notice that across the aisle from me, in the window seat, is a striking looking girl in tight jeans and a tight blue half shirt, sliding gently over perky little tits. Her belly is tan, her dark hair cropped short.
She and I are the only ones within 5 rows of each other. I steal a few glances over at her. She's reading some sort of romance novel and seems not to notice me. My imagination takes over and I begin to picture all sorts of nasty things I'd like to do with her. As a result, my cock begins to grow in my tight jeans, soon becoming quite painful in the cramped seat. I loosen my seatbelt, but that doesn't help much. I'm now imagining banging her in the lavatory, her ass up on the sink and her legs wrapped around my waist as I plow into her tight slit. I decide the pressure is too much, and I grab my jacket from the seat next to me and drape it over my crotch. Underneath it, I unzip my jeans and free that powerful erection, my hand sliding up and down as my pre-cum lubricates the shaft. This is exhilarating, jacking off while watching the subject of my fantasy, sitting not 10 feet away.