Natalie Portman and Sean Penn are the latest celebrity duo to get caught in a makeout session. Now, as we all know, Sean is married to Robin Wright, but this wouldn’t be Penn‘s first dalliance. He had a pretty steamy affair with model Petra Nemocova when he and Robin were on a break last year. At least Sean has good taste, right?

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Star magazine had a spy inform them when this unnamed source bumped into Sean and Natalie in an embrace:

“They went to a bank of elevators that only goes to the spa or to private rooms,” an eyewitness tells Star. “They came back about 45 minutes later, and that’s when I saw them making out. There’s a door outside of the hotel’s Tower Bar that has a bridge to the terrace, so it’s semi-private,” the eyewitness explains. “I used that path to get to the restroom, and when I came back, I had to go through some curtains — and that’s when I interrupted Sean and Natalie! When they saw me, they were startled and quickly composed themselves.”

We aren’t so surprised that Sean Penn is stepping out, but of course, Natalie Portman has always seemed too classy for this type of shenanigans. Lindsay Lohan? Yes. Natalie Portman. NO.

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