Adult PC Game: Venus Attracts - Version 0.7.1 by Caramba Games Win/Mac Archive

They are from a planet almost entirely inhabited by women. Their knowledge of male behaviour is almost lost. Two years ago, one of their spaceships accidentally discovered Earth. Now they are back on a scientific mission, disguised as human students, not to study Mankind, but to study Men.
The main protagonists are female, but you are watching them through the eyes of the mysterious... player of the game. During the first episodes, all you can do is watch. But maybe, one day, you will be able to meet them in person. They may want to study you!​

Venus Attracts - Version 0.7.1 by Caramba Games Win/Mac Gameplay Preview