"A wildly horny relationship"

How to explain the Prince Charles/Camilla Parker Bowles hook-up?
Tina Brown, the British magazine maven, enlightens a confused America in a chat this a.m. on Imus in the Morning.

"This was always a wildly horny relationship...They would go off in the bushes at High Grove and he'd come back with grass stains on his back. This was when he was still married to Diana."

"Grass stains on the back, huh" deadpanned Imus. "That's a little more information than we need."

Tsk, tsk.