kotobuki hajime, kotobuki tsumugi, k-on!, 00s, 1girl, alternate hairstyle, bikini, blonde hair, blue eyes, blush, breasts, cameltoe, cloud, criss-cross halter, day, fat mons, female focus, halterneck, large breasts, long hair, micro bikini, open mouth, palm tree, partially visible vulva, ponytail, round teeth, side-tie bikini bottom, sky, solo, swimsuit, teeth, thigh gap, tree, underboob, white bikini