Wife Kirishima Rino is deeply loved by her kind and caring husband, with whom she enjoys passionate creampie sex, mutually licking each other's anus. However, Rino harbors a secret from her husband—she is secretly the pet of her stepson. Under her stepson's command, she is forced to spread her pussy and masturbate in shame. While her husband sits at the dinner table, she is tormented beneath it with a remote-controlled vibrator. When her husband leaves for work, she is subjected to deep throat sessions and forced to receive cum in her mouth daily. Collared like a female dog, she submits obediently to her stepson's cock, enduring rough yet intensely pleasurable sex, repeatedly moaning "It feels so good~" as she lives each day in complete servitude.