“Hi, Mr. Darcey,” Sarah chirped with a friendly wave from her family’s pool.

Waving back from my upstairs window, I watched, enraptured, as she dove smoothly into the crystal-blue water. “Damn, look at her.” I mused through my friendly smile. “She’s absolutely killing me.”

I stood for a bit, watching her cut through the clear water with the athletic grace reserved for the young. It occurred to me many times that I shouldn’t be watching, but I couldn’t take my eyes off her in that little red bikini.

Until that summer, I’d paid little attention to my neighbor's daughter. It wasn’t until she began sunbathing in her backyard that I realized how much she’d blossomed.

And, good lord, had she ever. At seventeen, Sarah had transformed into a beautiful young woman with full, wonderfully sized breasts perched high on her chest and a slim, and athletic figure that made my cock twitch with desire.

Leaning against the sill, I continued to watch her graceful strokes as she effortlessly propelled herself through the water before emerging on the other side.

Dark hair flowed down her back as she rose, nymphlike, from the surface, clinging to her skin until it came within inches of her pert little ass. I watched with hungry interest as she padded to a lawn chair set up less than forty feet from my second-story window.

This had become her ritual over the summer. At four in the afternoon, shortly after I returned home from work, she came out to the pool, swam her laps, and then lay in that chair, wearing next to nothing while the sun turned her skin to a flawless golden bronze.

The timing was perfect. Her parents were never home until after six, and my wife wouldn’t come home for half an hour after that. The time she chose was serendipity for me, leaving her alone to tan with only me and the birds able to enjoy the show.

Once she was in that chair, with her dark sunglasses protecting her eyes, I stepped back into the shadows where I could continue to watch without disturbing her, and without her seeing me.

Watching in lurid fascination, I pulled my cock free, feeling it grow in my hand as she glossed her body with suntan lotion. My mouth went dry and a hard pulse passed through my gut as she smoothed oil over her flawlessly bronzed skin. Soon, her entire body glowed with a glistening sheen.

All the while, my hand was gliding over my shift, dragging my softer, fleshy skin over my hard, inner core. My breath was deep and growing ever heavier as I waited for her to remove the tiny bit of cloth covering her breasts. She was years younger than me and I knew I shouldn’t be peeping at her.

It was wrong, maybe even illegal, but I had no will to stop. With her eyes hidden behind her Michael Kors, I couldn’t see where she was looking, but I imagined her watching me, and that the smile playing across her face was of her secret desire to share this moment with an older man watching from above.

Maybe she did. She must have known I could see her, so even though she was alone in her home at this time of day, she couldn't be expecting complete privacy. I kept telling myself she wanted me to look. Somehow, that made me feel less dirty as I shamelessly stroked my cock from the relative concealment of my home.

Finally, she sat up and untied her bikini top, pulling it away and allowing her breasts to become exposed to the sun.

“Oh, fuck,” I grimaced, my hand tightening around my straining cock. Faster and faster, I stroked it, causing my thighs to flex as my body became flush with arousal.

All the while, my gaze never left Sarah as she rubbed lotion over her breasts. She was massaging them by then, and I gasped as she flicked her thumbs over her distended nipples. I had never seen her do that before and I almost blew my load when she pinched her hardened buds between her fingers.

I watched in awe as her hand slid down her belly until she reached the hem of her panties. I couldn't believe what I was seeing, and precum began coating my turgid head as her fingers disappeared under her bottom.

There was no doubt now, Sarah was brazenly teasing her clit, with her other hand still pulling at her nipples. I was transfixed, basking in the knowledge we were sharing such an intimate moment even though she was unaware of my intrusion into such a personal act.

My heartbeat was racing as I cupped my balls, squeezing them in a hopeless effort to delay my orgasm. I desperately wanted to come with her so I forced my strokes to slow before using both hands to cradle my junk. It was raw and taboo act and I felt deliciously dirty as her fingers rapidly frigged her clit under her panties.

When her back arched and her head lolled back, I knew she was close and I let my hand fly, stroking my cock hard and fast as she began to cum. Even from my window, I heard the lyrical moans issuing from her throat. My balls tightened, and my gut clenched as my cum exploded from my cock, spattering in long ropes into the towel I’d laid on the floor.

I was barely catching my breath, and zipping up my pants when my phone lit up. I swiped to see the text from an unknown number.

Hi, Mr. Darcey. I’ve loved watching you cum for me all summer. But would you mind staying by the window when you stoke? I can barely see you back in the shadows and I’m dying to see your cum shoot from that big ol’ cock.

Xoxo Sarah