Eva realized her mistake at this moment. She had been too tempted by her wish to one-up Draco for the humiliation she had suffered these past few months, although Riveting Night and Young Girl Eva had warned her against it.
In fact, this feeling of humiliation stemmed more from her Amaterasu side than her Eva side, as the Goddess had her nose up to the heavens. She never really did kinky shit with Lucifer unless she was asked for permission beforehand.
As we all know, Draco doesn't ask for permission, and Eva doesn't care anyway. However, Amaterasu did, and therein lay the problem.
Now that she was vulnerable and about to have her asshole penetrated by a donger bigger than an industrial PVC pipe, Eva was clear-headed. She had seen through all her faults and understood the cause and effect of her actions.