A friend and I are going to a two day meeting with other people. As the result of winning a dare, I get to give him an assignment he has to do. It would be fun to make it so that his crotch and balls are uncomfortable, irritated, or itchy, etc, especially when he walks or moves. I want him to be able to keep other people from knowing, but want to make it so that he is uncomfortable. It would be great if I could make it hard for him to walk normal, but not impossible to do so. Any ideas? Thank you