2boys, 3girls, :d, ahoge, blush, breasts, cleavage, collarbone, covering, gae_bolg_(fate), medium_breasts, multiple_boys, multiple_girls, nude_cover, onsen, open_mouth, parted_lips, partially_submerged, pointy_ears, rubber_duck, short_hair, smile, towel, towel_on_head, wading