kimura takahiro, honjoji akira, karin (viper), saki (viper), viper (series), viper v16, official art, 3girls, age difference, back, blonde hair, blue eyes, blue hair, blush, bow, braid, breasts, choker, fff threesome, glasses, grabbing another's breast, groin, groping, group sex, hair ribbon, hand on another's head, height difference, hug, large breasts, licking, loli, long hair, multiple girls, navel, nude, onee-loli, out-of-frame censoring, pink bow, ponytail, red hair, ribbon, smile, threesome, tongue, twin braids, very long hair, yuri