What you are asking someone to do is dangerous. Porn is not real, women do not want to 'taste your ass' whether you are paying them or not.
I stand by my suggestion of you seeking help from a qualified medical professional. I am very open minded and not judgemental but your obsession with this subject can be helped with therapy and I think you should seriously consider finding someone to help you overcome this.
You're currently masking the problem and feeding it with porn/fantasy subjectification and obsessively trying to make others accept your views when they know it isnt in the realm of what is considered normal behaviour. The fact that you think this type of behaviour is ok, shows that you are in desperate need of help
Please reach out to your GP or local mental health team. They are there to support you.