koiito kinenbi the animation, animated, animated gif, tagme, 10s, 1boy, 1girl, 2012, age difference, bathing, blush, breasts, brown hair, censored, cheating (relationship), closed eyes, collarbone, erection, fellatio, from side, hair bun, hetero, large breasts, large penis, mature female, mixed bathing, mosaic censoring, nude, okunaga yurie, older female and younger male, onsen, oral, outdoors, penis, penis grab, sauna, sweat, testicle grab, testicles, wet, yurie okunaga