Rule 34 Dev - 1boy abs areolae armpits arms_behind_head bara censored dog_tags erection grin highres idolmaster idolmaster_side-m looking_at_viewer lvlv male male_only muscles muscular muscular_male navel nipples patreon_username pectorals penis perineum purple_eyes shingen_seiji shirt_pulled_behind_neck smile solo testicles|2863065288