Rule 34 Dev - age_difference anthro anus asian_mythology ass back_muscles backsack balls beard belly blush blush_lines claws dragon draite duo ear_piercing east_asian_mythology eastern_dragon embarrassed embarrassed_nude_male exposed eyewear eyewear_only facial_hair father father_and_child father_and_son feet genitals girly glasses glasses_only hi_res horn horn_jewelry incest male male/male musclegut muscular mythology nipples nude older_male parent parent_and_child paws penis perineum piercing presenting shy son spread_butt spreading tail toe_claws toes yaoi younger_male|8440738304