Just that soft sound, seeing the way Jedao's body moves under the whip, makes Astarion's senses feel a little sharper and brighter. Feeding on pain is the closest he can get to feeding on blood.

"You sound beautiful, Jedao. Don't hold anything back."

He's got his eye in now, can be more confident about speed and weight. The next few strikes take about the same effort, but feel harder for being more focused: they don't land in stripes but in single focused spots on his shoulders, his back, his ass.