Rule 34 Dev - 10s 2019 3girls arm_up armpits ball beachball bikini black_bikini black_hair blonde_hair blue_bikini book brown_hair cameltoe cloud day facing_away facing_viewer female flat_chest highres horizon kudiramochi loli long_hair micro_bikini multiple_girls narrow_hips ocean original outdoors partially_submerged pool_float ribs short_hair skinny sky small_breasts snorkel standing_in_water striped striped_bikini sunglasses swimsuit trio water white_bikini|3257476199