Condoms are so important to use, but many people never get a chance to practice putting them on before they actually need to use one. We asked three teens to show us how it's done and use condoms (on bananas, of course) for the first time. If you've ever wondered how to buy a condom, the best way to put a condom on, how to tell if a condom is expired, how to take a condom off, and more, you NEED to watch this.