Rule 34 Dev - abdominal_bulge anal anal_penetration anthro balls big_balls big_dom_small_sub big_penis black_nose claws dominant duo erection feet foreskin genitals hair huge_penis male male/male muscular nipples otter_tail penetration penis size_difference pandottermon bear mammal mustelid otter black_and_white hi_res monochrome|23737220115