Venus holes are the small circles, which are formed on the lower back at both, men and women. When it comes to men, those holes are called Apollo holes.
It is interesting that those circles are sign of good circulation and a healthy body, and great circulation is an important prerequisite for easier to achieve orgasm.
It is fact that Venus holes are located in a place where there is no muscle and it is impossible to create them with some exercises. Still, in case if you are working on the process of elimination of excess fat, those holes may become visible.