Equipped with forced oral sex learning function, Kimishima No. 1 humanoid masturbation sleeve, Kimishima Mio DDOB-030

A professor, whose wife passed away first, embarks on creating a humanoid masturbation device that closely resembles his wife and has oral sex capabilities; only the final experiment remains. Under the guidance of the professor and his assistant, she becomes increasingly lewd, learning forced oral sex techniques and engaging in threesomes, ejaculating inside her until she reaches a climax!