Nicole Kidman, 59, made a notable appearance at a soirée in Portofino, Italy, on Tuesday, wearing a vintage-inspired, lingerie-style gown. The Hollywood star was photographed at the Splendido hotel, where she is reportedly staying, in a $685 silk and lace slip by Dodo Bar Or.

The orange slip featured a plunging neckline and was paired with diamond jewelry and gold sandals. Kidman styled her blonde hair in loose waves and opted for a natural makeup look. During the event, she posed for photographs with hotel staff, including front desk manager Nicola Cesareo and area managing director Alfonso Pacifico, and pianist Vlad.

This public appearance follows exclusive reports from the Daily Mail suggesting Kidman has begun a new romance with a wealthy businessman, identified as private equity businessman Michael Reinstein. The pair were reportedly seen together poolside on the Italian Riviera, where Reinstein was observed playfully interacting with Kidman.

Kidman's representatives have not yet commented on the romance rumors. A source close to the actress told the Daily Mail that Kidman, following her separation from Keith Urban after 19 years of marriage, deserves happiness and appears content. The source emphasized Kidman's desire to keep her personal life private.

Nicole has been staying in a luxury Italian hotel during her family holiday with daughters, Sunday, 18, and Faith, 15

Kidman is currently in Italy on a family trip with her daughters, Sunday, 18, and Faith, 15, whom she shares with ex-husband Keith Urban. Earlier this year, reports had also surfaced linking Kidman to Paul Salem, 62, Chairman of the Board of MGM Resorts International, though it was clarified they were not dating at the time.