Rule 34 Dev - 2013 age_difference alpha_male anal anal_sex anthro anus ass balls biceps black_fur brown_fur canine closed_eyes cocky cum cum_in_ass cum_inside doberman english_text father father_and_son fur furry gay incest knot linkin linkin_monroe male male_only missionary_position no_humans nude parent penetration red_fur sex size_difference son text verbal|1564618472