Lois quirked an eyebrow at the scene but actually paused before complying to Xander's order. After all, if he was delusional then she could be about to kill a human being. She was a lot of things, but a killer?
So rather than stake the vampire, she whipped out the cross and rushed forward and pressed the crucifix onto his forehead. When the vampire howled and the cross began to burn him Lois actually looked shocked. "Holy sh-" The vampire struggled and she found herself staking him without much more thought. As the vampire turned to dust and ash the reporter stared at Xander in horror. "What the hell was that??" She asked in a harsh whisper to try not to alert anything else.