SDJS-336 Uncensored "What happens if you inject 15,000ml of enema?" SOD female employees seriously try anal sex and AtoM practice research that starts off pa...

The SOD Sex Science Lab is a serious research lab into sex. This time, the theme is "intestinal juice." A female researcher uses herself as a test subject and gives a thorough report on cleansing, expansion, enemas, and anal sex. Even though she turns pale, she bravely takes on experiments such as enema endurance, AtoM, and three-hole fucking, and makes full use of the entire SOD headquarters to record the research that resulted in a total of 15,000ml of intestinal juice being squirted out.