I think it's probably a bad idea for young boys to see how they're being depicted in men's fantasies. It could get very dark. You could learn how to do things wrong.
. . . Natural affections and instincts, my dear sir, are the most beautiful of the Almighty's works, but like other beautiful works of His, they must be reared and fostered, or it is as natural that they should be wholly obscured, and that new feelings should usurp their place, as it is that the sweetest productions of the earth, left untended, should be choked with weeds and briers.