I was going to the beach for a swim. When I got in my car I realized there was a bag with my dildo in it. I thought it would be fun to use it right there, with cars rolling by near me and the risk of being seen. The excitement of being in public made me cum super quickly. I finished and got dressed before someone could find me. As I was leaving, I offered a ride to a hitchhiker and they noticed my wet dildo was still in the back. It was a bit embarrassing but they still got in the car with me!