They were ‘having fun in Paris’

They put the hot in haute cuisine.

Lauren Sánchez and her bestie Brooks Nader linked up for a lavish dinner at upscale Parisian eatery Lapérouse earlier this week.

An insider exclusively told Page Six that Sánchez and the Sports Illustrated swimsuit model were “out enjoying time together.”

“[They were] having fun in Paris,” the insider gushed of Brooks and Sânchez, who are fresh off the journalist’s $50 million Venitian wedding to Jeff Bezos last month.

Joined by Brooks’ sister, Sarah Jane Nader, the “Fly Who Flew to Space” author, 55, and brunette beauty, 28, were seen exiting the fine dining establishment helmed by head chef Jean‑Pierre Vigato.

Also spotted leaving the exquisite joint were Leonardo DiCaprio and Sean Penn, though it’s unclear if the actors had crossed paths with the Amazon founder’s new wife and her gal pals.

The hotspot — first awarded three Michelin stars in 1993 — is located in an opulent 18th-century mansion and is one of the oldest restaurants in Paris, having first opened its doors in 1766.

“For over two centuries, guests and courtesans have gathered in the discreet, plush atmosphere of our elegant private lounges to experience the magic of candlelit dinners and the timeless art of French living,” the website states.

Serving up authentic French cuisine on magnificent Bernardaud floral china, guests can enjoy beloved dishes like mashed potatoes stuffed with caviar, lobster tagliolini, truffled croque-monsieur, ratatouille and their signature beef Wellington.

Desserts, created by French Master Pâtissie Christophe Michalak, are also sure to leave patrons foaming out the mouth with options such as the rich chocolate soufflé and decedant profiteroles.

The venue is perfect for high-profile guests such as Sánchez due to the many private salons inside the architectural gem.

Each ornate space is decorated with crystal chandeliers, restored frescoes, narrow corridors and Venetian mirrors.

The dark and sexy bar makes for an inviting atmosphere for tête-à-têtes thanks to its low lighting, embroidered tapestries and velvety banquettes.

“To the sound of Madonna, smiles mingle and sparkle among an unmistakably overdressed crowd,” the website says.

The cocktail escape is perfect for early-evening drinks with friends or late-night dancing with music and glamour.

The cellar, once used as a shelter during World War II, houses more than 800 “carefully curated labels,” where the elite can take part in tailor-made tastings of Champagne and Burgundies, according to the website.

And if the textured, romantic walls of Lapérouse could talk, they may spill stories of Serge Gainsbourg’s meeting with Jane Birkin, Woody Allen filming “Midnight in Paris” and other visits by icons like Orson Welles, Winston Churchill and Ernest Hemingway.