My alsatian was a star of several porno movies only available on VHS and in video shops on Denmark.

particularly recommended by Bestiality Weakly was Blue Nights 6 on the Reeperbahn with Wulf. Also Walkies with Wulf and the barmaid.

I believe many of the his admirers called their dogs Blue due to confusions in translations of the script. They thought Wulf was Blue.