Sienna Miller Sucks Face with Slinky Wizard

8/14/2009 10:41 AM PDT
Sienna Miller finally hooked up with a man out-of-wedlock ... in a good way.

The dude taking down Balthazar Getty's sloppy seconds is DJ Slinky Wizard -- who also goes by his birth name, George Baker.

The two did what Sienna does best while on vacation in Ibiza -- PDA.

No word if the Slinky Wizard turned any tricks while on the boat.