Rule 34 Dev - 10s 2014 3boys batman batman_(series) black_hair boots brothers bruce_wayne cape dc_comics dick_grayson domino_mask family father_and_son gloves gymnastics handstand happy_new_year holiday imo_(ume_syrop) male_focus mask multiple_boys new_year nightwing robin_(dc) siblings sitting smile tim_drake upside-down|5013918702