Well that is a development Kodachi did not expect. She hasn't the slightest idea that Sasuke has pricked his finger, and she's actually rather impressed by his lack of being completely flustered by her conversation starter.

Instead it's Kodachi's cheeks that burn a little more red as her brows raise in clear surprise. ".. 'Boyfriend'?" she repeats, "Roses.. For your boyfriend?"

Well clearly she's made the largest error she could have ever possibly made. But it's unsettling that one who's spent her entire life in an all-girl's school would mistake a girl for a boy. In fact, that's unacceptable! She looks him up and down silently.

And so with a frown, she attempts to reach out and press her palm flat against Sasuke's chest, which she would slide from one side to the other. Then, assuming she even gets that far, she would drop to a crouch and do the same for the front of his pants.