ok after i have sex with my girlfriend my balls sting for a period of time right now there stinging and i want to know why i cant figure it out. Well when i have sex i do not *** i do hold it in so i can last longer i thought maybe that was a factor to this but i just want to make sure. Maybe i just need to ejaculate after i dono can u please give me any information on why or what this could be a cause of...