The Kill Bill actress said she was left feeling "violated" by the kiss, which was "not consensual."
The images of the actual kiss have been pulled by the photo agency licensing them at the "request of someone."
The Pulp Fiction actress’ rep issued a statement about the incident: "It is opportunism at its worst. She wasn't complicit in it. Somewhere in his head he must have thought it an appropriate way of behaving. It clearly wasn't."
Thurman, 46, was hosting a charity auction at amfAR’s star-studded Cinema Against AIDS gala when the 38-year-old Italian businessman planted one on her, cigarette still in hand.
He was excited about winning a pair of VIP tickets to the 2016 Victoria's Secret fashion show for almost $200,000.
Etiquette expert Lena Koropey of Gramercy Protocol told Inside Edition: "It is out of bounds. Always think about 'What am I doing going to impact that person? How am I going to show them respect?'