falling

Lindsay Lohan dined out with renewed BFFs Paris and Nicky Hilton Friday night at Gladstone's in Malibu. And as the trio attempted to discreetly sneak in the kitchen door, Lindsay took an unfortunate tumble and clung to Paris to avoid and all-out wipe-out.

Another guest shared dinner with the girls ... Lindsay's former enemy, Brandon Davis! Yes, you may remember it was the oil heir who made the term "Firecrotch" famous.

But these guys have put their pasts behind them and made up. And let's be honest, we love to see hot girls hang together so more power to the Lindsay-Paris reunion!

Click through for more deets on Paris and Lindsay's dinner ...