Bones, Season 4

Angela:
Brennan, this is crazy.

Brennan:
Why? I'm intellectually gifted, financially secure. Statistically, I could expect to have an exceptional child.

Angela:
Fine. Yes. Absolutely. But do know how this is supposed to work, right?... You get naked together. You devour each other in a passionate frenzy.

Brennan:
Booth would think that would create an emotional bond between us.

Angela:
[sarcastic] Of course that's ridiculous.

Brennan:
I knew you'd understand.

Angela:
Then why use Booth at all? Why don't you use Fisher and his discount sperm?

Brennan:
No, Booth has a bigger mandible and a more prominent zygomatic than Fisher, as well as a more pronounced ratio between the width of his clavicles and his ilia.

Angela:
So, it's because Booth is hot? Now we're getting somewhere.