A girl approached me in the street recently and asked euphemistically if there was anything she could do for me. Initially I said no and began to walk away. But then I turned and called her over. I explained that my sex needs were not exactly run of the mill, telling her about my obsession with girls knickers and looking up girls skirts at them. She replied that she was ok with that so we took a walk along to my car and got into the back seat. She was wearing a knee length navy skirt and she opened her legs to let me stare for a few minutes at the mid blue knickers she was wearing. The experience was so exciting and arousing that I cummed my panties. She smiled and offered me tissues to clean up. During that process she saw that I wear girls knickers. She smiled again but was fine with that.

I paid her and she left the car, but since then we have had a further two in car sessions where I have cum in my knickers after looking at her panties up her skirt. She has offered to wank me for double what I paid her. I am thinking about that as a possibility.