SDMU-593 Three SOD female employees seriously examined How can I get a lot of sperm at once? - SOD Sex Science Lab Report 1

SOD has set up a research institute at its head office to scientifically experiment and verify mysteries and questions about eroticism! - Female researchers will work hard on erotic research. - The first is How to get a lot of sperm at once? - 』. - Sampling sperm by handjob, fucking, intercrural sex, etc. by 3 people, pursuing flight, darkness, taste, and deriving a method to produce mass ejaculation.