How I Met Your Mother2005

Marshall Eriksen:
Lily... deep within the Amazonian rainforest, there is a type of tree that only grows around the body of an existing tree. It cannot survive without this tree. It is supported... by this tree. Lily, we are that tree.

Lily:
The inside tree or the outside tree?

Marshall Eriksen:
The outside tree.

Lily:
Shouldn't there be three trees?

Marshall Eriksen:
You and I are one tree. Okay, look, Lily, the point is that we grew around Ted and without him, we're slowly dying.

Lily:
What do we do?

Marshall Eriksen:
I think we can marry each other. But we also have to marry Ted.

Lily:
I'll tell you right now, my Dad is not gonna pay for that wedding.