Pimples near the Shaft of Penis and Near Testicles

Hi, a week ago, i started to notice this weird bump near my shaft around my testicles, and i wanted to know if it was serious. I have a picture, of just what im talking about. It looks like a pimple but i dont know if it can be anything serious. Please get back at me... picture: http://img205.imageshack.us/my.php?image=1011082302aan9.jpg