um....
wonderboy,
I hate to use my experience as a nurse to sound like I know it all, but you really need to go to a doctor and get it checked out. It is not normal to have acne on your testes. It could be something as bad as genital herpes, which you may have contracted by someone who has oral herpes. I'm not giving you a diagnosis, but please don't wait on something like that. I know it's embarrasing, but it's not worth not finding out for sure, either.
And for the love of God, don't do anything sexual with anyone else until you find out!
cece