1girl, american_flag_bikini, bad_pixiv_id, bikini, blonde_hair, breasts, cleavage, flag_print, girls_und_panzer, hand_on_own_head, kay_(girls_und_panzer), large_breasts, naughty_face, navel, ngc20701, plump, side-tie_bikini_bottom, solo, spread_legs, squatting, stomach, swimsuit, thighhighs