1girl, akiyama_mio, bare_arms, bare_shoulders, bed_sheet, black_bra, black_eyes, black_hair, black_panties, bow, bow_bra, bra, breasts, breasts_apart, hair_spread_out, hands_up, k-on!, lace-trimmed_bra, lace_trim, lingerie, long_hair, looking_at_viewer, lying, medium_breasts, navel, on_back, open_mouth, panties, pillow, solo, sooon, spread_legs, stomach, string_panties, thighs, underwear, underwear_only