Yugi smiled as if coming to know that Shadow could confide in him like she was now, he did this for all his friends and Shadow, even Yami will be no different. Giving a short small squeeze of comfort before pulling away to see her face only to see Shadow in a whole new way. This look was so different than what he had just gotten use to. 

To see What she looked to be more of a teenage girl around his height maybe even to his age was something he didnt think would happen. A little bit of pink spread on his cheeks and suddenly feeling nervous, Yugi was not use to girls this close. Not like this. Sixteen years old and he could be a little bit close to tea, but crossing over his own line of comfort. Blinking a few times in awe and surprised, Yugi smiled to hide his discomfort and shyness. "Its no problem. You are my friend and now in a way family. If there is anything in my power to help you in any way. Let me know. It doesnt matter how stupid or silly it may sound to you. Okay?" Yugi asks giving them a little bit a a respectful distance.