I aimed for the fewest lewd actions needed to access the third work event. I was only corrupting in the relationship room before the festival. Also, no, I didn't have desire mouth. Keep in mind that this is playing the 1.2 beta, which changed one of the three -10 triggers for the final scene into a -5 and also made it so that Aura gains fewer stacks of obedient maid when not resisting on the third day of training if she already accepted Arwin as her master on day one. It's basically only something you'd do to prove that it's possible, it really doesn't offer much benefit over resisting once.