Subject 129 goes back to the laboratories to get her vitals scanned and her semen collected. In order to gather sperm data, Doctors Ereskinaga and Ninsurnaga enter the testing room and place enormous tubes that resemble penises into Emma's mouth, anus, and vaginal canal. After eating a thousand black cocks, Emma is terrified of them. They are a part of their White Sissy project, Doctor Ninsurnaga tells her, and she is now just a test subject.

As the sperm liquids and the pulling of the suction escape her vagina, Emma experiences the agonizing discomfort of the procedure. Emma is no...

Subject 129 goes back to the laboratories to get her vitals scanned and her semen collected. In order to gather sperm data, Doctors Ereskinaga and Ninsurnaga enter the testing room and place enormous tubes that resemble penises into Emma's mouth, anus, and vaginal canal. After eating a thousand black cocks, Emma is terrified of them. They are a part of their White Sissy project, Doctor Ninsurnaga tells her, and she is now just a test subject.

As the sperm liquids and the pulling of the suction escape her vagina, Emma experiences the agonizing discomfort of the procedure. Emma is now only a test subject, according to Doctor Ninsurnaga, who reveals that this is all part of their White Sissy campaign.

As the two women exit the room, Emma experiences uncontrollable orgasms due to the sex that the tubes inject into her. The procedure is finally over, and Emma feels relieved. The stepsisters transform him back into a male human and invite him to a supper, which he must attend. When Mr. Silverstein awakens, he is astounded by the twins' appearance and their skill in creating a unique gift just for him. He is wearing a white suit and has gold cufflinks.

By commanding his body to penetrate them, the twins completely subjugate him. His cock has been transformed into a huge black cock, thanks to their efforts. Because of this, he realizes that the BBC is superior. After using him, the twins return him to his lab housing for future use.