Mile High Masturbator

I am a businessman and travel often. I was on a long distance red eye flight a while ago, the cabin lights were dimmed, and most of the passengers were trying to sleep. I pulled the thin airline blanket over me and closed my eyes, but I was not feeling sleepy, I was feeling horny as hell. I reclined my seat and reached under the blanket with my right hand, I slid my hand down to my crotch and started rubbing fondling myself through my jeans. First I caressed my balls, gently and slowly pressing and rubbing them as I pictured the muscular young GI who had boarded the plane just ahead of me. I moved my hand up a little and caressed the outline of my penis through the rough denim. Soon I had a full blown erection. I stroked my dick through the fabric of my jeans, squeezing and rubbing it, as I imagined what that young GI looked like under his uniform, his muscular body revealed as I peeled his uniform off. I felt sticky drops of pre-cum leaking into my briefs as I played with myself. I quietly unzipped my jeans, moving my arm as little as possible, reached into my fly, into my briefs, and pulled my dick out. My sticky dick-head rubbed against the underside of the blanket. I gripped my shaft in my fist and squeezed. But I could not masturbate properly sitting here, with just a thin blanket for cover. Quickly I tucked my dick back in my pants and zipped back up. Pulled the blanked off, stood up, and made my way to the back of the plane.The bathrooms were empty, and I quickly slid into one and locked the door. As soon as I was inside I pulled my shirt off, kicked my shoes off, tugged my socks off too, and then ripped down my jeans. I stood in that tiny space stripped to my briefs, looking at myself in the mirror, admiring the big tent in the pouch of my undies. I stroked myself through my undies and the wet patch on the front got bigger. After jerking off in my briefs for a couple of minutes I yanked them down and kicked them off, and stood there buck naked. I leant back against the wall and thrust my hips forward, my hard cock sticking straight up in the air. I grabbed my aching cock and started pounding it. The airplane bucked and heaved a little to remind me that we were up in the air; I was naked and wanking at 30,000 feet!I stroked my throbbing cock faster and faster, harder and harder, with my right hand, and I grabbed my balls with my left hand and squeezed them. I thought about the GI again and imagined him naked in the bathroom with me, imagined his big cock in my mouth. I wanked furiously now, my fist flying up and down my shaft till suddenly my toes curled and my back arched and I had a fantastic orgasm, and shot a big load of cum, which I caught in my left hand. I lifted the handful of hot jizz up to my lips and licked some of it up, imagining it belonged to that GI. Then I quickly washed the rest of it away in the tiny sink, wiped my dripping knob with some tissues and pulled my clothes back on.When I opened the bathroom door there was a guy waiting outside. Was he looking at me funny? Did I make moaning noises that he heard? Did he figure out what I was doing in there? I smiled inwardly, so what? I would never see him again. I went back to my seat, pulled the blanket back over me, and fell into a contented sleep.