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