Next time you are working your way down to “shampoo the carpet”, try a line of W’s from the inside/back of her knee up the inside of her thigh… 
(the softest warmest part of the leg)
That’s because you are doing lower case letters directly around the magic button, women want to be teased. Unlike men who want stimulation on the spot, women want stimulation everywhere, and when I say everywhere, I mean from top of head to ends of the toes. Glide your hands and fingers over her body, and when you feel a warm spot circle a couple of times.
another one to try, circling the breast, starting at the edge of her breast, circle the entire breast, spiraling upward, slowly, when you get to the areola spiral back outward, and repeat on the other side, avoiding contact with the nipple…
What a mess that that can be…like 9 hrs for me.