Always younger for WL.
Mostly younger for ML.
The reason is that massage takes actual skill, while on the other hand everyone more or less knows how to fuck. So yeah, for your Mimi or Candy type decent looking MILFS with God-Level skills I will be more than happy to go see them. But if I am after strictly FS well how hard is it to get on all fours and take a cock? Might as well get stunner.