SiN2.0 Sex Information Network

In case your girlfriend ever asks you why you got an erection in the middle of the night, you can tell her that it's just you bodies way of keeping the little guy fit. New research shows that mid-sleep erections may be a precaution taken by your body to ensure your penis gets enough oxygen to stay healthy, and coincide with the theory that if you don't use it, you just might loose it.