"Julia Roberts, 44; Sharon Stone, 52; Julianne Moore, 53. They all get huge contracts, but I can't accept them right now. It's not the done thing," she said.
"I've turned you into a kept man. And there was I thinking I'd married a guy with a salary."
"So I got rich by getting married," Sarkozy replied.
In another recording, Buisson can be heard criticising the early years of Sarkozy's presidency, and in a conversation with Jean-Michel Goudard, Sarkozy's publicist, the pair dismiss several ministers as "catastrophic" and "totally crap".
William Goldnadel, Buisson's lawyer, said the recordings were purely to remember what was said.
"The Elysee is not a church. Others take notes."