That sensitive RAPHE line

[Boss]

For me the summum of beauty of a penis is, when there is a distinctive 'raphe'-line, preferably straight, from the frenulum on top towards the anus.

It is the result of a fetal developmental phenomenon whereby the scrotum and penis close toward the midline and fuse. There are many more nervs in that line and that makes it a pleasure to play with it. Carefully scratching and even pinching with your nails gives every ladyboy a fiesta of lust.

The part of that line from scrotum till anus is called the 'perineal raphe, and is the most sensitive part. But the raph on scrorum and shaft are more visible and important for the beauty of the penis. When the raph ends in the 'frenulum' just below the glans there is an other very sensitive part.