A look at the relative length of index and ring finger of a man may be a good indicator of the size of … penis, according to South Korean scientists.

As found, the ratio between the second and fourth finger of his right hand seems to be correlated with the length of the penis stretched in a state of relaxation – the lowest ratio between two fingers to indicate a larger penis.

This association seems to have its origins in fetal life support. "During the highconcentrations lead to high testosterone testicular activity and a lower proportion of twofingers," the scientists wrote.

"In this study, volunteers with a lower ratio between the two fingers were stretched penislonger," he added.

And noted that the length of the penis in the relaxation seems to have "strongrelationship" with his penis erect.