Dr
Rupeka and Dr
Carney Rejuvall do underside enhancement with
PMMA.
Interesting when you only want to do an minimal / conservative enhancement. You simply do only a little bit on top and also only a little bit on the underside.
Also: Additional
Girth on the underside is nice for heterosexual men, cause here its really about the vertical
Girth (location of the g-spot!)