“Jesus, they know I’m watching!” I whispered hoarsely. Braless in just panties, bare to the waist, exposing her breasts, enacting every adolescent boy’s masturbatory daydream. I figured they would be too into doing it to look around but I guess the guy, lying on his back, could see I was watching. My interest piqued, I lingered, partially hidden behind the small building leading to the water plant’s entrance; peeking out from around the corner like a sick pervert. “Wow!” I thought. Her back glistened with the sweat of her exertions as she arched away. I focused in on her lovely back. He must have seen me gripping my dick and yanking away and must have surmised I was looking at something good. I had been so intent on looking at her naked body I hadn’t even noticed he had slipped his shorts off and was as naked as she was. He must have told her she had an audience because she turned her head to look my way, briefly glancing at me to confirm I was there, then turning back to concentrate on fucking her guy properly. Over the next 20 minutes or so her movements became more and more sexually agitated. If they had continued doing that for a few more seconds I would have walked on and missed the whole
