The research theme of the 5th SOD Lab is deepthroat. A radical deep throat experiment is performed using an opening device, fingers, dildo, and a big dick in the mouth of a female employee who has no experience with deep throat. As the pain increases, the subject's obscene mood increases, and the subject overflows a large amount of saliva and highly viscous juice. A bridge was created between my mouth and dick with deep love juices that wouldn't break even if we were apart.