Trust me, I dont understand what you are talking about.
Erogenous zone is a different thing, A female has multiple erogenous zone in four categories, extremely sensitive, moderately sensitive, minimal sensitive and non sensitive. The fourth category is applicable for a few only, some feel that, most dont.
Talking about orgasm quickly, there are two sure shot places, Clit and G-Spot. For some there are three spots, U-Spot, A-Spot and Perineum.
Now talking about a location near spinal cord, I am not quite aware off about the exact location. But that doenot help on orgasm. The point is on the left of spinal cord about an inch below shoulder blade. It doesnot help everyone, but works for some. Thats how Chiropractors make money.
What is interesting is you are talking on pressure. A lot of people donot know about Acupressure. For se drive on male or female about two inches below the wrist, on the side of thumb a pressure and release, three times each, total nine times a day do help. I tried that, it helps. Its applicable for both hands, so total 36 times, 9 on each hands and 9 on each legs. On leg, should be two inches above the ankle on inner side of legs.
I didnot understand your uestion, but tried to cover the words you used on your question, if that helps, I will be very happy. So do inform.