Sadie blushes at Walter's teasing, because there is absolutely no denying the fact that the quiet rumble of her purring is now filling the entryway to his and Russell's flat. So, being mature, she sticks her tongue out at Walter before grinning at her older friend.

"Happy birthday Walter!" She steps forward, letting go of Ben's hand for a moment so that she can give Walter a big hug. "How's your day been so far?"