Dont feel guilt or shame! It is nice sometimes to jerk off to bestiality. Anyway I know how you feel, I was the same, but I bet, that as I do, you will find yourself playing with your dick all night long watching bestiality before the end of the weekend. True story.
I have lust for sexual stuff on the internet. I can browse porn sites a very long time before finding the perfect video to jerk off to. Once I had a popup that opened on a bestiality website. I was not shocked, I reacted like when it is gay porn, I don't pay much attention and quickly closed the window. I finally found a "conventional" porn video to help me do my stuff but once I came, I was still hard. And I don't know why, I couldn't make my dick soft. I had the memory of a thumbnail located on the bestiality site that popped up earlier. I came back to the porn site I was browsing, refreshing the page until the same popup came again, then when it happened I remembered my dick having a big pulse, then some precum flowed out of it. I knew what I had to do : put on some lube and masturbate like crazy before the video of a blonde lied in bed with a big black Dane. It was a small extract of the original video where she was blowing the Dane looking into his eyes. I was masturbating, but I came when I saw her smiling still with the dog cock in her mouth. So satisfying!!!!!!