While you're doing this experiment, don't be surprised if you feel like you have to go the bathroom. "When you're stimulating the G-spot, you'll have the sensation that you have to urinate because of the G-spot's proximity to the urethra. ... That's a sign you're in the right place."
Dr. Berman says you have to identify your own G-spot before anyone else can. "You've got to find it yourself first," she says. "Or else he may never be able to find it."