1girl ahoge bare_shoulders blonde_hair blue_one-piece_swimsuit blue_sky breasts c_(theta) cameltoe cloud commentary_request covered_navel crotch from_below grin highres ibuki_tsubasa idolmaster idolmaster_million_live! large_breasts looking_at_viewer looking_down off_shoulder one-piece_swimsuit pink_eyes school_swimsuit short_hair skindentation sky smile solo spread_legs swimsuit thighs v wet