Rule 34 Dev - 3boys black_eyes black_hair blue_eyes brown_eyes brown_hair completely_naked cranial_growth dark_brown_hair erection flcl gaku gay glasses group_masturbation hand_on_arm hand_on_knee handjob holding_penis horn looking_at_another looking_at_viewer male male_only masashi masturbating_self_and_another masturbation multiple_males multiple_penises naota_nandaba nude one_eye_closed penis penis_size_difference sitting tezuka998 threesome white_background yaoi young|300440160