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As Natalia and Paulina go to a sex trade show to learn more about intimacy, Monika embarks on her own quest to recruit subjects for their study.
The girls visit a sex store to find the perfect research tool for their project. When they fail to do so, Natalia decides to make one herself.
Monika's idea for gathering data is a hit, but Natalia isn't happy with the results. The girls go to a class on female pleasure to gain more insight.