Eighty of Manhattan's freebie-loving finest are still recovering after an all-expense-paid trip to Istanbul last weekend to toast Turkish department store Vakko's collaboration with fashion boy-wonder Zac Posen.

The city's social ambassadors took full advantage of the estimated $2 million tour of booty, importing a healthy dose of American-style decadence just in time for Ramadan.

Jet lag served the revelers well, with the real action kicking in long after the last belly dance at the Les Ottomans hotel.
[NSFW photo gallery after the jump!]

Multiple spies report rampant room-hopping, facilitated by the "face book" compiled by PR powerhouse Nadine Johnson, complete with bios (and hotel-room phone numbers) for willing swingers. Among the night crawlers in attendance were Jack Nicholson's new supposed squeeze, Paz de la Huerta, art-world nepotistas Vito Schnabel and Nina Clemente, Padma Lakshmi-Rushdie (sans Salman), U.K. fashion oddity Isabella Blow, and a heady mix of Mardens and de Villeneuves.

Guests were given an array of treats—for the men, backgammon sets; for the ladies, customized silk scarves—along with private drivers and sundry other gratis luxuries, courtesy of the retail giant's diminutive owner, Cem Hakko, whose diverse interests in Formula One racing, fashion, and World Cup sailing have made him into Turkey's tiniest playboy.

On Saturday, the crew climbed aboard the 408-foot yacht, Savarona (the world's second fifth-largest; it rents for $455,000 per week), for a casual brunch and afternoon cruise. Later that night, they dined in black-tie and watched a preview performance of high-end-stripper Dita Von Teese's new act.

With nightlife giant Amy Sacco on the guest list, it was perhaps inevitable that the gaggle would land at Club Crystal, described by its owner as Istanbul's answer to Bungalow 8 (despite a glaring lack of Turkish Olsens.)

Amid the festivities, reality show personality-cum-Men's Vogue staffer Hud Morgan, bow tie and all, took advantage of the trip to learn the ins and outs of Carolyn Bessette impersonator Annelise Peterson's PR strategy for Calvin Klein. Allah Akhbar indeed!

PHOTOS: Billy Farrell/PatrickMcMullan.com; Yacht-Spotter.com