rule 34 animal genitalia animal penis anthro balls bedroom black clothing black nails black nose black paws black underwear blindfold blue eyes brown hair canid canine canine penis canis clothing colored nails cyberpaws detailed background digital media artwork domestic door eye roll fasttrack37d fur genitals glowing glowing clothing hair human to anthro inside knot looking pleasured magic male mammal masturbation multicolored body multicolored fur nails open mouth pawpads paws penile penile masturbation penis raised leg solo species transformation spitz transformation two tone body two tone fur underwear vein window yellow body yellow fur 4095916