Rule 34 Dev - 2boys adoptive_siblings bare_chest beard boxers_(clothing) facial_hair gay heart_boxers heart_underwear human human_only light-skinned_male light_skin loki_(marvel) male male_only marvel marvel_cinematic_universe muscular_male sleepy smirk step-incest thor_(marvel) thor_(series) wink winking_at_viewer yaoi|5799822816