Now we'll never know if Robin Quivers can shake her booty.

Howard Stern's Sirius satellite show sidekick joined an on-air staff conversation today about side gigs when the shock jock revealed he recently refused a very big offer on a show (he would not say which one) because he was afraid it would interfere with his first love, radio.

Robin agreed, saying her job with Howie comes first—and that she's practically fighting off the DWTS producers at this point.

So why would she turn them down?