Anyone who has had a dog or cat as a pet must know that there is a spot near the base of the tail on their backs that can drive them crazy with pleasure. As it turns out, there's at least one woman on earth, my wife, who has the same spot. Once we get the warming up and getting comfy stuff settled in bed, I usually pull her over to straddle half on top and half off of me, and start lightly scratching her back, and as I head for that spot down her spine, I can feel her tense up, tighten with her legs, and sometimes push her pubic bone into my leg. I can even tease her by not getting there too quickly, but when I do, it's like flipping a switch on, and from then on, she's mine. Has anyone else explored this area of their partners?