YES. YES. BEST SCENE IN ALL OF DOCTOR WHO.
ROSE’S FACE IS PRICELESS
Billie is trying SO HARD not to break right there, you can tell. David is just WORKING IT and you can see her fighting not to laugh at him.
The bottom right gif is perection
(Source: dwgifs)
The first time I saw this it was the tenth doctor; every time after that, it was David Tennant having WAY too much fun...