Incest is NOT taking it a bit far, actually. There's incest in the Bible, isn't there?
In Genesis 19:33:
That night they got their father to drink wine, and the older daughter went in and lay with him. He was not aware of it when she lay down or when she got up.
The next day the older daughter said to the younger, "Last night I lay with my father. Let's get him to drink wine again tonight, and you go in and lie with him so we can preserve our family line through our father."
So they got their father to drink wine that night also, and the younger daughter went and lay with him. Again he was not aware of it when she lay down or when she got up.
Again, it's not going too far. And since it's in the Bible, incest has got to be perfectly fine and right and natural, right?
Owen: You okay? Want to get a drink or something?
Cristina: Oh. Oh, now we're on again 'cause the mood suits you? Because I'm the sad little girl with no friends and I tripped your savior complex into action? Usually I can deal with the hot and cold thing, but not today. Just leave me the hell alone.