The “shocker" is a sexual act that involves the insertion of fingers into a woman’s vagina and anus at the same time. To perform this act correctly, the index finger and the middle finger must be inserted into the vagina.
Suddenly, the little finger is inserted into the anus — causing surprise and shock. The ring finger and thumb remain folded and out of the way.
It is not known for sure where this sex act came from. However, this is a school of thought that it was made up by frat boys in American universities as a joke.
The whole idea involved surprising sexual partners and then bragging about it to friends. Most women get a fright when this sexual act is performed. The practice eventually died out through a combination of boredom and complaints from women.
However, it lives on as a popular form of sexual activity between consenting adults.
The act of double penetration isn’t just limited to fingers, however. Some women like to be penetrated by two penises at the same time. Alternatively, the three fingers used could be provided by two different people.
Women who want to try this act but are a little tentative can work up to it by using sex toys such as anal beads and butt plugs. If you’re not sure about inviting a third party into the bedroom, use a dildo instead.