Public sex is sexual activity that takes place in a public context. It refers to one or more persons performing a sex act in a public place, or in a private place which can be viewed from a public place.
Such a private place may be a back yard, a barn, balcony or a bedroom with the curtains open. Public sex also includes sexual acts in semi-public places where the general public is free to enter, such as shopping malls. Public sex acts can be performed in a car (colloquially called “parking”), on a beach, in a forest, theatre, bus, aeroplane, street, toilet cubicle, or cemetery, besides other locations.
According to a large study in 2008, having sex in a public place is a common fantasy and a significant number of couples or individuals have done so.