"I guess so." Walking up to Booth, Brennan laced her arm through his and rested her head against his arm. It was a simple gesture. It was who they were. For not being a couple, they certainly acted like one, not that Brennan would ever recognize that. That meant observing what was comfortable and familiar. It wasn't something the anthropologist did. This was just how she and Booth worked. They always had. Even after admitting their feelings for one another, well, Booth admitting his feelings for Brennan and her shooting him down in fear, they still had acted this way.
After a moment, a thought crossed Brennan's mind. She herself didn't like pie. She didn't like her fruit cooked, but Booth liked pie and given he wasn't allowed to drink because he was becoming addicted and she wasn't going to let him fall that way... well, it was an idea.
"Why don't we get some pie? Well, you get some pie. I'll get coffee." Because it wouldn't be right if Brennan got pie, though no doubt Booth would try to get her to try it anyway. He always did. She could at least comply and eat his ice cream, though.