Jerk off while watching her?

Her tits and cleavage were too much for me. I put my book on the ground and pulled my cock out over the waist band of my bathing suit. I started to fap while staring out at Rochelle in the water. She moved closer still as she walked a little along the shoreline, the water at waist level.

She would stop every few steps to reach down and splash water on herself. I was getting really close. Jerking off to Rochelle like this was so exciting! I loved staring at her titties and loved the thought of jerking off so close to her. I wanted to cum...

She looked up just then and peered at me through the branches. Her mouth dropped and it was suddenly obvious to me that she could see me through the trees at this distance. I pulled my shorts back up and just stood there like an idiot. After what seemed like hours, she turned and slowly walked back towards the dock. I grabbed my book and quickly ran back to the deck to sit with Tim.

Rochelle never said anything about catching me masturbating, but she didn't talk to me much that trip, or indeed much that whole summer. Whenever I visited Tim, she was always out doing errands or away. I was pissed at myself for taking too much of a chance, and now I only had my imagination when it came to Rochelle.