You are Lena's taxi driver, she is sitting behind you while you are driving. In your cab, there is a small cam installed behind your seat, it givng you direct view of the legs of the passenger.

As she wearing a short skirt, it's the good opportunity to run the cam and watch often her legs. She seems to know your game, because she keeps her legs open most of time, allowwing you to enjoy the view of her panty.