I'm actually torn on the question of did they/didn't they. On one hand, Bones's sheepish 'well you know' grin indicates they probably did, as does Booth's cheerful attitude the next morning at his FBI office. But... I'm going to go with no. They probably didn't. The show didn't show the REST of the conversation with Angela and Bones. It just followed Hodgins as he reported to Cam. There was also a certain amount of uncertainty with how B&B were acting towards each other that tells me they crossed a line but not all the way.
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