On Saturday, the couple sat front row for Fendi’s show at Milan Fashion Week.
Stone, 57, donned a sleeveless black cardigan with feather shoulder detailing while Mica, 27, stayed casual in a leather jacket and grey t-shirt.
The two have been spotted packing on the PDA all over Italy since arriving for the fashion festivities.
Earlier this week, the Basic Instinct actress and Mica, a model from Argentina, made a stop in Venice, where the pair spent some time taking photographs of each other at a park, according to The Daily Mail.
The lovebirds also helped Roberto Cavalli celebrate the opening of his new boutique in Milan on Thursday.
In their black-tie best, the trio reunited on Saturday night for the amfAR Milan Fashion Week Gala event. Stone walked the carpet in a revealing black dress, arm-in-arm with Mica, who opted for a dapper black suit.
Stone, who has been married twice, was first romantically linked to Mica in May.
Click through the gallery above for photos of Sharon Stone and Martin Mica at Milan Fashion Week.