1girl, 2boys, alternate_costume, america_(hetalia), axis_powers_hetalia, beach, bikini, blonde_hair, blue_eyes, blue_sky, breasts, buck_teeth, crossover, day, eyewear_on_head, front-tie_bikini_top, front-tie_top, genderswap, genderswap_(mtf), huacai, innertube, kotori_photobomb, lying, medium_breasts, multiple_boys, ocean, outdoors, patrick_star, pink_lips, sand, short_hair, sky, smile, sponge, spongebob_squarepants, spongebob_squarepants_(character), starfish, sunglasses, swimsuit, teeth, umbrella, wavy_hair, white_bikini