A professor who lost his wife started making a humanoid sex doll that looks exactly like his wife and is equipped with AI-powered oral sex functions. All that remains is the final experiment. M-shape restraint, pour lube, and knead the ass. Torture it with large vibrators or electric massagers, and it comes more intensely than humans. Next is vibrating oral sex, finger oral sex, and even a double oral sex with the assistant's and professor's penises. The more you play with it, the more erotic the humanoid sex doll becomes. After continuous oral sex, arm-supported oral sex, and advanced learning, it finally reaches orgasm in the final experiment item: 3P internal ejaculation!
