Elsa. The Minotaur's Favorite!

When Elsa pleases the Minotaur's, they know they are in for an amazing experience.

No one. Not even their own kind can please them the way Elsa can.

In the above example, notice how Elsa gently massages the Minotaur's balls as she gives it head. Where else are they going to get this kind of pleasure and someone with Elsa's amazing skill at giving head!

This is also why the ties between the Minotaur's and Arendelle are exceptionally strong......