The grapefruit method is a sexual technique that involves using a grapefruit to enhance oral sex on a man. The grapefruit is prepared by cutting off both ends, making a hole in the center, and rolling it on a hard surface to make it softer. The technique involves placing the grapefruit around the penis and moving it up and down while performing oral sex. The technique is said to create a unique sensation that can be pleasurable for the receiver. However, there are also risks associated with the technique, such as getting juice in the eye or causing irritation to the urethra. It is important to note that the grapefruit method is not a medically recommended or scientifically proven technique, and it is up to individuals to decide whether or not to try it.