Some Images Being Marked Mature

Due to a request from some of my models, I will be marking a number of images with the "Mature" tag.  This is not because I believe the images are of a mature nature, but because my models have expressed concern over people finding their pictures who are not a member of an artistic community.  Rest assured that the images in question are not of a mature nature and have not changed... I am simply trying to protect them from casual Google searches by those with an over-abundance of hormones and a lack of artistic appreciation.