chikuwa (tks), hakurei reimu, kirisame marisa, touhou, bad id, bad pixiv id, 2girls, :d, :o, anklet, ass, ball, bare shoulders, barefoot, beach, beach towel, beachball, bikini, blonde hair, blue eyes, blush, bow, braid, breasts, brown eyes, brown hair, cloud, day, drink, drinking straw, dutch angle, eyelashes, feet, female focus, flat chest, from behind, green eyes, hair bow, hair tubes, head tilt, jewelry, large bow, leaning back, long hair, looking at viewer, looking back, lying, midriff, multiple girls, navel, ocean, on stomach, one-piece swimsuit, open mouth, outdoors, sitting, sky, small breasts, smile, spread legs, swimsuit, towel, twin braids, twintails, white bikini, white one-piece swimsuit