I'll be honest. I often do. I think because of the world we live in, and the niggling fear that I am doing something wrong. I can often rationalize things, how we as humans do far, far worse to our animal companions and the fact that I enjoy pleasuring them is pretty low on the offense spectrum, but still it is ingrained in me to feel shame over something I've tried to change over and over.
If you had a choice would you not be a zoo? Sometimes I think I might. If it was a simple switch I would choose to be "normal"-- whatever that is. But I guess I really have no choice in this matter so I try to accept myself more. Some days are easier than others.