As a man of many fetishes, some reformed, I can say that the porn helps remove the craving, and the fact that you can find porn of it helps you know that there are others like you, which presents you to a community that can help you talk about this weird thing that you cannot tell anyone else. I always felt like a freak until I found on the internet that I wasnt alone, for example I vividly remembering how sick I thought I was, and I felt like I didn't deserve to live, I contemplated suicide several times feeling like a worthless or dangerous member of soceity, but finding groups of people who were like me, and functioned normally and could hold their urges back really helped me understand myself, the reasons, and that I could be okay. Through a community and pornography, I don't feel like killing myself, or hurting others.