hitsuki, kazami mizuho, kusanagi kei, onegai teacher, animated, animated gif, gif artifacts, lowres, 00s, 1boy, 1girl, age difference, bare shoulders, belt, blush, clothed sex, collarbone, dark penis, erection, fellatio, from side, gakuran, glasses, hair bun, hetero, indoors, leaning back, licking, lipstick, looking at another, looking to the side, makeup, open belt, open fly, open mouth, oral, pants, penis, pince-nez, purple eyes, qvga, raised eyebrows, red hair, red lips, rimless eyewear, school uniform, shirt, sidelocks, single hair bun, sitting, sky, solo focus, sunset, teacher, teacher and student, tongue, tongue out, unbuttoned, uncensored, upper body, vest, window