He hears giggling

As he walks into the park he hears the sound of girls giggling. Straining his eyes and ears, he sees nothing but strolls in the direction of the sound. The park is large and open with trees around the perimeter. In the centre of the park, there is a bandstand, and that is where the giggling appears to be coming from. He walked towards the bandstand, quietly, straining to hear what the girls were talking about. Eventually, He was right next to the steps of the bandstand, peering inside he saw two young women drinking cans of beer or cider. They'd obviously had quite a bit to drink, and kept laughing and giggling. They were talking about men and sex, and the conversation was pretty coarse. One of the girls says she has to pee, and gets up and heads in his direction. Quickly, he ducks into the shadows and freezes as she walks down the steps, and begins to unfasten her jeans. He is treated to a close up view of her beautiful ass as she squats down to relieve herself.