rule 34 anatomically correct anatomically correct genitalia anatomically correct penis animal genitalia animal penis anthro anus ass balls bench biped black nose border collie bottomwear canid canine canis cashmere cashmerix cheek tuft claws clothing collie dipstick ears domestic erection facial tuft feet fingers floppy ears fur genitals grey body grey fur hand on face herding hi res kilver knot looking at viewer lying male mammal multicolored body multicolored ears multicolored fur nude on back outside park bench pastoral pawpads paws penis penis tip perineum pink anus plant presenting presenting anus presenting hindquarters purple eyes sheath sheep shorts solo spots spread legs spreading tree tuft 6925976