But now they've made their red carpet debut at the New York premiere of Cumberbatch's new movie, The Imitation Game. And don't they look just PERFECT?
Yes. Yes they do.
Seriously, have you seen a couple with profiles as good as this before?
And LOOK at that ring.
The outing comes shortly after Cumberbatch gave his first interview since the engagement, in which he told fans their ovaries will "still have uses".
Speaking on the American chat show, Live, Cumberbatch said: "I'm very happy, I'm a very happy man. I have a great population of fans as well – they're smart, they'll get around to the idea. Your ovaries do still have use, let me tell you."