1boy 1girl @_@ animal_ears bare_shoulders black_bra black_panties blue_eyes blush bra breasts cat_ears cleavage collarbone fake_animal_ears hairband heart heart-shaped_pupils hetero highres large_breasts long_hair looking_at_viewer lying navel on_back open_mouth original panties smile solo_focus strap_slip sweat symbol-shaped_pupils underwear yuzuki_himuka