ok, so lately I have been seeing a lot of guys naked due to the fact that I am now a freshman in an all male dorm so it's a common thing. I have noticed that a lot of guys that are very white have dicks and balls that are a darker color than their skin. Why is it like this? is it an age thing? I'm a freshman so I have not really seen many fully developed penises before so I'm pretty brainless when it comes to stuff like this.