Rule 34 Dev - 10s 1boy ass blue_eyes blue_hair contrapposto from_behind fundoshi hand_on_own_hip idolmaster idolmaster_side-m japanese_clothes looking_at_viewer looking_back male_focus male_underwear nayoshi_(r-744) outside_border rokushaku_fundoshi smile solo standing taiga_takeru toned underwear white_male_underwear|8636828499