Z blinked at Senna but gave a smile in return. She could see the daring look in the shorter girl's eyes, and she was, honestly, used to it. The only thing that would stop her from being a flirt would be if the person was in a relationship, and Senna and Tim was iffy to tell. "[i]Sounds good[/i]," she signed before turning towards Ace and raising her eyebrows. 
Ace glanced at Senna, seeing her false expression, then nodded slowly. "Sure, why not," he agreed.