[He's braced himself for the pain in part to make sure his own instincts didn't freak out upon being "attacked," and so he doesn't make all that much of a fuss over the initial bite. What he wasn't prepared for was the way the blood-drawing would feel; this wasn't like a normal wound starting to bleed out. It was...nice? No, odd. That might be a better word for it. He wasn't really sure what to make of that.

When she pulls back, he's shaking his head a couple of times as though to clear it.]

That...worked, then?