She beamed at him, shuffling over in the soggy dirt so that she could rest her head against his arm. A part of Sarah Jane wondered if he would mind. It was a part of her that was quickly forgotten when the Doctor began to talk about suns.

"I'll go with one and a half, just for the sheer unlikeliness of the situation," Sarah said, grinning. She could just now make out the horizon of a never-ending ocean. "One's still being born, you see. It'll be quite an event - and no, you never did, Doctor."