Eris snaps Carl's pinkie, shrieking with laughter, to keep the Meatus curse from being triggered.
Having established that the Meatus Curse was still active even though Eris's Chaos Spinner had spared Carl from making it permanent, Eris giggled, pointed down at his boxers, and said "None of that. Here. Let me help you."
She reached over and snapped his pinkie. Carl screamed; the goddess shrieked with laughter. The injury was her idea of a favor, pain as an anti-arousal measure before she kissed him. Once she vanished, Carl downed a healing potion to deal with it.
Eris's cruel, jokey solution to the Meatus curse, and a demonstration of her nature.