Pencil eraser nipples
From Voyeurweb's Wiki about Sex
Pencil eraser nipples are nipples which are long and as hard as a typical pencil eraser. Pencil eraser nipples are rare and only occur when she has erected nipples. It is said that pencil eraser nipples are more sensitive than other nipples. Pencil eraser nipples produce the best poking nipples under tops especially when worn braless.
