Sarah Power, Californication You kind of get the feeling by episode 9 of the 5th season of Californication that the writers aren't even trying to come up with reasons for women to get their kits off.
When Sarah Power bursts into Hank Moody's trailer on the set of Santa Monica Cop and whips out her ladies, only the thinnest of plot points is used as an explanation.
She has realized this and is always serving hot photos of herself in bikinis online.