While paraphilic disorder and sexual deviancy are quite separate, except for the high propensity for cluster B's to engage in high risk sexual behaviours, I totally get where you're coming from. I have children to a covert who has to be supervised due to his abuse which included sneakily trying parental alienation. I had no idea, all I know is that whatever was said behind my back was so bad that I was advised not to see it because it would add to the problems he'd already caused. I'm just glad it didn't work, I couldn't imagine having to deal with all that again.