Smallville, Season 10

Clark Kent:
All my life I've been afraid, Lois. Afraid of people knowing the truth about me. Afraid of them rejecting me, and even if they didn't, still losing them. I've been afraid of everything I can't control. But when I was faced with the idea of losing you forever, it made me realize there's something I'd regret more than anything else, and that's not telling you the truth about me. 'Cause that's the only way we could share a life together. I know the odds are stacked against us and we'd be risking everything, but if you're ready to take that leap, there's no one else that I'd want to take that leap with. Lois, you've had a lot of questions about The Blur, it's me. I'm The Blur.

Lois Lane:
(jumps on Clark, kissing him) What took you so long?

Clark Kent:
(confused, realizing that she already knows) What? You...