Quote Originally Posted by Arial Black View Post
A smarter way is have the mount go first: mount moves, and Readies another move triggered by its rider finishing his two (or whatever) attacks.

Then the rider takes their turn, presumably attacking the (now adjacent) baddie as many times as their abilities allow, after which the mount's Readied move get's triggered.
That's a little wonky, but it does work; technically the horse is Readying its Action to Dash after your Attack- meaning the horse would trigger an AoO...

But, thinking about it, the horse risks the AoO either way. So, rock on!