1girl, ahoge, ayul_(ayulneri_92), back, bikini, blue_hair, blush, breasts, ganyu_(genshin_impact), genshin_impact, horns, large_breasts, long_hair, looking_at_viewer, looking_back, lying, o-ring, o-ring_bikini, on_stomach, outdoors, purple_eyes, sideboob, smile, solo, swimsuit, untied_bikini, white_bikini