Lucius considered ignoring her question but decided he might as well answer. She already knew really, only it probably wasn't as bad as what she might imagine.
"Only once so far, when I had her marked. It seemed a shame to waste her blood and without doing so I could not have healed her instantly. She would have had to let it heal mostly naturally and risk infection" Lucius told Buffy dispassionately as he swept her up into his arms.
"You need to rest, you just healed a broken arm. It seemed only fair that it Evie should not be the one to fix what you broke"