I have a small sore on the very very lower part of my testicles towards my anus. It is toward the right side near my thigh and it dosnt itch, but it hurt when i touched it and put antibacterial cream on it. I have very sensitive skin and I believe its there due to rubbing during foreplay(jeans rubbing that area). I looked up photos of stds and not a single looks like it. It slightly burns when I urinate ,but only when i`m dehydrated. I`m a virgin that has only engaged in oral sex twice.