Body Double

I am watching Jay Leno, who has a ridiculously tall, thin, young actress on, talking about choosing a body double for her "bottom." Now why, pray tell, would such a specimen be seeking a body double? Are we, the viewing audience, meant to believe that her little, tiny bottom is not good enough? Are we meant not to know the difference? Is it to protect her privacy? But (butt) what if I didn't know it was a bottom double? What if I went along with my life believing that the perfect cheeks that appeared on film were hers? How would I cope with the knowledge that the 40-foot tall gigantic bum on screen was not that of said actress? The truth is, I don't care. Now maybe if her own personal seat had been disfigured in some freak playground slide incident and didn't reflect the bum perfection required of her character, I might support it. Maybe it is the inequality of life-- that this young starlet who likely does own a perfect set of bum cheeks would keep them hidden while another must bare it all in her stead, or that she is unwilling to share with the world that which, were it my own hind end, I would probably flaunt for everyone... I don't know. I actually don't care. I don't care whose butt it is. I don't want to see it either way. But if I did, I wouldn't strain to identify its true bearer (barer).