Here are some key episodes where their relationship progresses:
* Season 1, Episode 15 ("The Woman in the Sand"): This episode features a significant turning point where Booth opens up to Bones about his past and his feelings for her. He shares a kiss with her, and it's clear there is a growing attraction between them.
* Season 2, Episode 1 ("The Woman in the Garden"): They kiss again, and there's a growing sense of intimacy.
* Season 2, Episode 20 ("The Man in the Fallout Shelter"): Booth finally asks Bones out on a date, marking a significant step forward in their relationship.
However, it's important to note that:
* Their relationship evolves slowly and organically over several seasons.
* They experience ups and downs, conflicts, and challenges throughout their journey.
* While there's no single "official" episode where they "go out," these episodes mark important milestones in their developing romance.
Ultimately, the beauty of their relationship is the gradual unfolding of their feelings and the journey they take together.