It was a very warm night in August and I could sense rain coming, that heavy rain normal for autumn. The strong desire to get wet came over me and since I was alone for the weekend I decided to take the opportunity. I quickly changed into my thin white cotton drawstring pants and a long sleeved tunika, adding a black jacket to make me less visible if, for some reason, I would meet someone in the dark. The bike ride to the nearby lake was short and halfway there it started raining, heavy warm drops hitting me, my white pants quickly becoming see thru and the thin material clinging to my thighs, stretching as I pedaled. By the time I reached my destination, a very small stretch of sandy beach, the rain had increased in strength and it was pouring down, almost as a shower. My breath became deeper, my heart racing in anticipation of what was to come. The small beach is located very close to a road but at this time of the night and with that heavy rain it was unlikely someone else would pass by. I hid the bike in a brush and took off my jacket. With the rain pouring down I was instantly wet and I rubbed my hands over my wet clothes, enjoying the feeling enormously. Looking down I could see my manhood through the pants, stretching the fabric. As I slowly walked down into the water my pants clinged and stretched around my legs and ass. The water was very warm, basically the same temperature as the rain, and the feeling was very erotic. I lay down in the water and started rubbing my body, closing in on my manhood. I came quickly. After a while, being very satisfied, I walked up to my bike, put on my wet jacket and started to pedal home. Almost home, riding on partially lit streets, I met a person. To this day I am not sure what he really saw, but I know my white pants were quite see through. But who cares really...