Lil2rich, you're an idiot. The problem with CP from a moral point of view is that the girl might not be able to make that decision for herself yet, or that she might be forced to do things she doesn't want.
However, a piece of silicone is rather insensitive. It won't be hurt, scarred for life or traumatized.
What you are saying comes very close to "It is ok to stick your dick into a piece of plastic, but not if that piece of plastic is shaped the wrong way".
