Sharon Stone and Kate Moss shared a kiss at the 3rd Annual Amfar Inspiration Gala in Sao Paulo, Brasil on April 5, 2013. Credit: Ramey Photo

How much is a kiss worth? When it's shared by two of Hollywood's hottest women, the price skyrockets significantly, as Kate Moss and Sharon Stone discovered on Friday, April 5.

The leggy ladies brought in a whopping $53,529 for locking lips onstage at an amFAR Inspiration Gala in Sao Paulo, Brazil, raising funds for AIDS research. The winner of the auction item also received a bottle of Moet & Chandon champagne signed by the duo.

Moss, 39, has donated her smooches for a good cause before. The supermodel previously auctioned off a kiss to Hosh Ibrahim, the highest bidder for the Great Ormond Street charity auction event, for an impressive $7,500.

"I put loads of red lipstick on and I never wear red lipstick so he's going to be stained," Moss told the Times UK prior to their epic kiss.

Ibrahim later told the publication that Moss "tastes as good as she looks," adding that "for what I got, [$7,500] was hardly anything."