My mom made me mastrubate to hentai porn. Whenever she found my stash of regular porn she'd preach me how that crap was totally rotting my brain because porn is nothing like regular sex at all and I'd be unfit for any sort of normal relationship at some point in the future if I kept that porn-habit.
I concluded that that meant that mastrubating to hentai's ok. Because that is drawn and extremely unreal porn to begin with. You had to be totally out of your mind to let that cloud your perception of reality.
Thank you mom. You suck sometimes. I still mastrubate to regular porn though, she did not win completely. HAHA!