No.
No Sister or Brother left. So, I guess that means........NO !
I wouldn't even think of it.
I guess it would depend upon circumstances. Fortunately I have none to compare it to . . .
The Bible seems to be fully supportive of it though - Deuteronomy 25:5
You can even get the wrath (death) for not completing the task - Genesis 38:8,9
My brother's wife is about as appealing as Ancient Hippy's first wife, although not nearly as good looking. So, no, I'll stick with Mrs Didge.
Never.
Nah, he's not my type ;)
Just kidding! No, I never would.
Ewww! No!
Nope! I wouldn't under normal circumstances but at the heat of the moment don't know? Might?