The O.C.2003

Seth Cohen:
[putting down the bag with the pregnancy test] When I found out it was your pregnancy test I totally freaked out, and I thought, this'll change everything. But then Ryan asked if I could imagine a time when I'd ever not wanna be with you, and I realized the answer is no.

Summer Roberts:
I'm totally pregnant, aren't I?

Seth Cohen:
I don't know.

Summer Roberts:
What do you mean you don't know?

[Seth holds up a ring]

Summer Roberts:
Is that gonna like squirt invisible ink or something?

Seth Cohen:
No, but it will make you engaged to me.

Summer Roberts:
What? Are you insane?

Seth Cohen:
Possibly, but I'm certain on this.

Summer Roberts:
No, Cohen, we can't.

Seth Cohen:
Sure we can, we're both adults, we don't share DNA...

Summer Roberts:
But...

Seth Cohen:
You just have to want to. I do.

Summer Roberts:
Don't you think we should look at the test first?

Seth Cohen:
And have you wonder for the rest of your life if I proposed to you because you're pregnant? I'm doing this because I love you and I wanna spend the rest of my life with you.

Summer Roberts:
You know, once you do this, you can't take it back.

Seth Cohen:
Summer Roberts, will you marry me?