Tennant to Marry Moffett?

Various sources are suggesting that David Tennant has proposed to Georgia Moffett, and they are now engaged.
From The Sun Website:

"TENTH Doctor Who David Tennant has got engaged to actress girlfriend Georgia Moffett - daughter of fifth Time Lord Peter Davison.

Now they are making plans to wed on New Year's Day in 2012.
A source said: "They are besotted with each other and can't wait to tie the knot." David, 39, met the stunning blonde on the Doctor Who set when she made a guest appearance as his daughter in 2008.
Georgia, 26 on Christmas Day, has an eight-year-old son Tyler - and has told friends she was impressed with how well he and David get on."

Congratulations if it is 100% true and we'll confirm it later today.
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