What is a strap-on?
A strap-on is a sex toy which comes in multiple distinct parts. First, there is a harness, strap or pair of underwear which can be worn on your body. Typically, this harness features a hole or flap where a long, penis-shaped toy (such as a dildo) can be inserted. The person wearing the strap-on can then use it to penetrate another person in the hole of their choice. They can twist and shake and thrust just like they're using a real cock!