Rule 34 Dev - 2boys age_difference ai_generated anthro blush canine cumming cumming_in_ass doggy_style dominant_human ejaculation ejaculation_in_ass furry grin hi_res highres human human_on_anthro interspecies male male_focus male_only muscular_anthro older_anthro panting red_collar scp980 size_difference small_dom_big_sub submissive_anthro wagging_tail young younger_human|14066193960