"Aren't you enjoying your punishment too much?"

"Ha-euk! Ah! Good, good...! There, too, hngh, feels so good! Ungh!"

Expecting the pleasure to come, the word she uttered was "good." That word ignited Sungbaek even more. He had been holding back a little, but seeing her enjoy it so much... He realized how foolish his gentle lovemaking had been, thinking he was being considerate of her.

"You should've said something sooner."