Rule 34 Dev - 1boy abs alternate_version_available bara barazoku beating_off big_balls big_penis blonde_hair boner erect_penis erection gay hands_behind_head hard_on indoor_masturbation indoor_nudity jacking_off jerking jerking_off jerkingoff kuroshinki light-skinned_male male male_focus male_masturbation male_nipples male_only manly masculine masturbating masturbating_on_bed mirio_togata muscles muscular muscular_male my_hero_academia naked_male naked_man naked_masturbation nipples no_body_hair nude_male one_handed_masturbation pecs penile_masturbation penis scars_on_arms solo solo_male spread_legs stiffy stroking stroking_cock stroking_penis sweat veiny_muscles veiny_penis wanking|13723320992