"You'd better not be," the smile on Andrew's face didn't falter as he teased her a bit. Okay, so it was very possible that the point Dawn was from didn't include her expecting him to be so friendly towards her and stuff. But, the Scoobies were his family in the point of time he came from, and that made Dawn his little sister. Besides, it didn't hurt that she was the only one that had been a part of the group longer than him (sort of?) and was still younger.
But at her next question, Andrew perked a brow at her. "Don't you think that question should be rephrased a bit so that it's more... Got anything good that Buffy would let me play with?" Really, last thing he wanted was the big leader getting on his case cause the baby sis accidentally brought about a demon. Or got turned into a giant. Or a centaur. Or a doll. All of which he'd seen her either do or have happen to her.