The final stage on the form or art penis enlargement , that provides you the ability to enlarge your penis on your own.

It's a very secret form of art, which can be only mastered by hard training with the monks on the Johnny Sins Mountain.
Girl: W O W your pp is SOOOOO BIG. How is it that big??

Black Belt Master: I hold the black belt on enlargement

* Immediately grows his pp another 2 inches*
by BlackBeltMaster July 23, 2020
Get the Black belt on enlargement mug.
It's the art of enlarging your genitals with your own will. Takes years to practise and master it.
Gf: Wow your genitals weren't so big yesterday
Me: Hehehe, I have the Black Belt on Enlargement
by BlackBeltMaster December 9, 2020
Get the Black belt on enlargement mug.