I really don't think Stern gets the credit he is due. Most people think of him as lesbians and poo jokes. But the essence of his comedy is his abiliity to skewer the vain and self-important. O&A on the other hand, are as james said, one trick ponies. It's the shock without the humor.
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"All my years in p*rn didn't quite prepare me for childbirth. I mistakenly thought all the stretching I did would make this easier."