SDMUA-068 Even if you have a boyfriend and girlfriend, what will happen if a man and woman with a strong libido who appear in AV spend 18 hours together? [Sex Observation Documentary]

January 2023, half a year since the enforcement of the AV new law. In times like these, I want to see erotic scenes without a plot. The director invited 6 men and women with strong libido who are appearing in AV even though they have boyfriends and girlfriends to a secluded cottage. There is one pre-determined contract, "Girls can have sex (insertion) up to 2 times, and anything else." What will happen during their 1 night, 2 days and 18 hours?