Rule 34 Dev - 3boys age_difference air_nomad airbender_tattoo anal anal_penetration anal_sex ass avatar_legends back back_muscles back_view background bald bara beard bed bedroom being_watched big_ass big_butt big_penis body_paint bodypaint bolin bubble_ass bubble_butt door facial_hair fundoshi fundoshi_only gay human human_only light-skinned_male light_skin mako male male/male male_only male_penetrated male_penetrating mature mature_male muscle muscles muscular muscular_back muscular_male nude nude_male on_floor on_ground railing smooth_skin spying tenzin the_legend_of_korra thong underwear underwear_only vansbeab watching white_underwear yaoi|5329187720