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Rose is grinning, with her tongue caught between her teeth and eyes gleaming. Her teasing laugh fills the TARDIS and the Doctor is doing his best to ignore her. He can never ignore her, though, especially when she’s looking at him like that. He works hard to keep his eyes away, though both of them know he’s sneaking glances more often than can truly be hidden. He runs a hand through his hair, and she’s watching. She wishes she didn’t want to touch it so desperately. She doesn’t know how desperately he’d like to catch her tongue between his teeth.