Teens caught fucking at party

A mainstay of the classic teen comedy movie, but usually seen at least once in every sitcom that has a teenaged character, this is the inevitable result of mixing one or more teenagers with a house devoid of parental figures, who are usually away for the weekend. It almost always results in wall-to-wall teens, loud music, underage drinking, and property damage. Sometimes this is by design, and sometimes a small party for a couple of friends spirals completely out of control. A popular variation of this is that the host only invited over two or three friends and the party just shows up out of nowhere. Someone they did invite brought one more person, and so did another. Then someone they never met shows up at the door.