Rule 34 Dev - absurd_res age_difference anal anthro black_and_white canid canine canis comic domestic_dog duo erection foreskin genitals grandchild grandfather grandfather_and_grandchild grandfather_and_grandson grandparent grandparent_and_grandchild grandson hi_res incest lewd_latte male male/male mammal monochrome motion_lines mouse murid murine original_characters penis rodent spread_legs spreading|11018670112