rule 34 alfred alfer anatomically correct animal genitalia animal penis anthro brown eyes cackling canid canine canine genitalia canine penis canis domestic floppy ears fur fur tuft furrowed brow genitals grey background grey body grey fur hi res lidded eyes looking at object looking at phone lying male male only mammal masturbation mixed breed muzzle scabs on front pawpads penis pink pawpads pit bull purple nose shaded simple background solo solo male tan body tan fur tongue tongue out tuft watermark 7458670