I'm a 27 year old male, and recently when I have sex (especially when I'm on my back), my testicles are moving up out of my scrotum and either beside my penis or all the way up above my penis. There's no pain otherwise, but it does cause discomfort when it happens. I usually have to reach down and push my testicles back into my scrotum. I've had an inguinal hernia on the right side and had corrective surgery, but that was completely different.