On Fingerprints

I’ve read that the fingertips are among the most sensitive parts of the body. Running my fingers across your skin, feeling every smoothness, every ridge, bend, crevice, follicle, dimple, I believe it. I did more research.

“Two hypotheses [about fingerprints] are to be found in the literature. The first is that fingerprints improve grip (analogous to the tread on car tyres).”

I believe this, too. When I flex my fingers to hold you, or drag the tips across your aureoles, nipples, labia, clit, I feel the pads of my fingers gain traction and friction on your skin, even with the lubrication of your moisture or either of our saliva.

“The second is to enhance tactile perception by “increasing the subsurface strain with respect to the surface deformation.” The new research validates the second hypothesis.”

New research to be sure. I’ll tell you about subsurface strain and surface deformation. But yes, that tactile perception is an addiction, to feel every goosebump, every shiver, is to read your body like Braille. Subtle and oh, so deliciously long in the learning. I am a most devoted scientist and reader.

“Here, we show that fingerprints may have a strong impact on the spectral filtering properties of the skin in dynamic tactile exploration.”

Yes, let me show you. I’ll close my eyes and not peek. You place my fingertips anywhere you want on you. I’ll tell you what I’m touching. Anywhere. The lightest of touches. I’ll know.

“… the regular ridged topography of fingerskin is an effective amplifier of the minute vibrations generated by surface sliding. Amplification factors of up to 100 are reported.“

Your body vibrates under my sliding fingers. That’s not what they meant, but I feel it anyway. The minute topography of my fingers against the macro-topography of your body sends signals straight to my hindbrain, amplified, translated, converted into lust a hundred times over.

“In humans, fingerprints are organized in elliptical twirls so that each region of the fingertip (. . .) can be ascribed with an optimal scanning orientation.”

I know this well. It’s why my fingers race arcuate paths over you. It’s why they spiral tighter and tighter around your breast to tease your hardened nipple. It’s why they endlessly circle and swipe over your clit from all different directions.

“…The observed response behaviour of the sensory system is suggestive of several other valuable performance characteristics, described as “interesting functional consequences of fingerprints”

Interesting functional consequences. Indeed.

Quotes from:
http://www.arn.org/blogs/index.php/literature/2009/03/19/understanding_the_exquisite_tactile_sens
and
The Role of Fingerprints in the Coding of Tactile Information Probed with a Biomimetic Sensor J. Scheibert, S. Leurent, A. Prevost, and G. Debregeas
Science, 323, 13 March 2009: 1503-1506 | DOI: 10.1126/science.1166467