k-on!, akiyama mio, tainaka ritsu, cait, high resolution, wallpaper, 16:10 aspect ratio, 2girls, alternative hairstyle, barefoot, beach, bikini, black hair, breasts, brown eyes, brown hair, cleavage, feet, female, grey eyes, long hair, lying, multiple girls, ocean, one eye closed, on stomach, outdoors, purple eyes, shiny, shiny skin, short hair, soles, swimsuit, toes, toe scrunch, water, wet, wink, yuri, potential duplicate