Yukino, in her adorable red dress (http://i5.photobucket.com/albums/y172/kojiimate/jinglebellrockoutfit_yukino.jpg), has been enjoying herself for the most part - enjoying the fact that the mansion isn't trying to make them miserable, mostly. But then she gets a look at poor Naoto, who looks absolutely miserable and mentally retracts that though. She waves at Naoto, and moves to go keep him company...

...Only, when she gets closer, she's able to see the bottom half of his outfit in much greater detail. O-Oh. Wait, what? Huh?

So her greeting started off fine - " Hi Naoto! I just" - and then sort of sputtered and veered off in another direction, thanks to her shock. "...Why are you in a dress?"