http://jennifergreen.avonrepresentative.com/

Rating System Used at All of My Sites

R-7: Restricted to ages 7 & up.
R-10: Restricted to ages 10 & up.
R-13: Restricted to ages 13 & up.
R-16: Restricted to ages 16 & up.
R-18: Restricted to ages 18 & up for extreme adult situations.

Fairly simple, yes? ^_^