Venus holes are small holes which formed on the lower back in men and women. These holes are called Apollo holes, in case of men.
These holes are located in a place where two bones connect the pelvis, and can be seen only in people who have this genetic predisposition or appropriate size ligaments.
One cannot have these holes just because you want them, because it is simply the genetics. The interesting part is that these holes are sign of good circulation and a healthy body.
These holes are located in a place where there is no muscle, it is impossible to create them with some exercises, but if you working for the elimination of excess fat, these holes may become visible.