rule 34 2017 anal anal masturbation anal sex anatomically correct anatomically correct penis animal genitalia animal penis anus balls black balls black fur black nose black spots black tail blue eyes canine canine penis claws collar cutaway dalmatian dewclaw dildo dildo sitting erection fangs feral floppy ears fur grey background hybernation knot knotted dildo male male only mammal masturbation multicolored fur multicolored tail open mouth patreon penetration penis pink penis pink tongue quadruped sagging balls sex toy signature simple background solo spots spotted fur spotted tail teeth timtam tongue tongue out toying self two tone fur two tone tail url vein veiny penis white claws white fur white tail 2267273