Jeff Bezos, Lauren Sanchez Host Oprah on Superyacht, Still Pack on the PDA

Jeff Bezos and Lauren Sanchez got their own not-so-little ‘Love Boat’ floating off the coast of Italy, and none other than Oprah Winfrey is up on the lido deck with ’em!!!

The billionaires — Jeff and O — were shoulder to shoulder at the lunch table aboard the Koru … his superyacht that’s been cruising along the French and Italian Rivieras this summer. Sanchezos hosted Oprah and Gayle King Thursday for what looks like a fabulous luncheon near Capri.

As for what they were chatting about — super-rich stuff, no doubt — but it wasn’t all biz, not for the hosts, anyway … ’cause Mommy and Daddy couldn’t keep their hands off each other.

After Oprah and Gayle boarded a tender to head back to shore (or to their own fabulous yacht), Lauren and Jeff were hugging and kissing before slipping into something more comfortable … their swimwear.

Get used to this kinda scene aboard the SS Sanchezos … we hear Oprah’s just the start of a celeb parade aboard Jeff’s ship. They’ll be celebrating all summer with several groups of their famous friends coming aboard.