I could not get her face out of my head: the way she smiled while she saw me ejaculate, when she caught me jerking off. A lot of questions raced through my head: How long had she been standing there? Did she accidentally catch me, or had she followed me? Had she noticed my erection earlier on the beach? Every time I thought about it, I became hard as a rock and had to masturbate.
I had gone back to the nude beach at the lake a couple of times to see if she'd be there but found no one there. Apparently, she was not a daily visitor, maybe not even a local, but just a onetime visitor. A week after it had happened, I still had hope; maybe she had a weekly routine of going to the beach.
I went back, about one hour earlier in the day than our encounter a week ago. Again, no one was there. It was quite early in the morning, so I was not surprised that no other people were at the beach. Although slightly disappointed, I decided to spread out my towel, take a dip in the lake and enjoy the morning sun on my naked body.
After a short swim, I laid down on my back to let the sun dry me. I was going through some news on my phone, but was quickly overcome by drowsiness, laid down the phone and I closed my eyes and fell asleep.
A little later, I woke up. I don't recall what I dreamt of, but it must have been a naughty dream; I propped myself up on my elbows and saw that my penis was fully erect, pointing towards my chest.
Still recovering from my sleepy state, I looked in my backpack for my sunscreen, when I noticed I was no longer alone on the beach: she was back! She was lying about ten yards away from me on my left side, and just like me earlier, busy on her phone. The sound of me rummaging in my backpack made her look my way. I immediately realized that, lying on my back, and my cock rock-hard; there was no way she could not have seen it.
Again, that smile! My cock bounced in excitement. My first thought was to pull up my legs and sit up in an attempt to hide it but decided against it. Apparently, she was not fazed by it, and would probably draw her attention to my predicament. I tried to play it cool. Besides, there was no one else on the beach. I opened the sunscreen and began applying it to my arms and my chest. I sat up and rubbed it on my legs, feet first and then up to my thighs.