Sean Penn: Prey to Petra’s Pert Puppies?

Using her feminine wiles to attract a maximum of attention, Petra Nemcova bared a good portion of her breast tissue on the red carpet in Cannes. The New York Daily News is suggesting that Petra’s choice of a white gown with a plunging neckline was a ploy to get the attention of one Sean Penn. The two were briefly linked during Sean’s most recent split from wife Robin Wright, and back in February the moody actor boldly showed up to Elton John’s Oscar party with Nemcova on his arm.

A source revealed that Petra was “flirting heavily with [Sean] at the Chopard party” and said that at another party on a yacht, Nemcova seemed to be dancing with a guy just to make Penn jealous.

But Nemcova really pulled out the big guns (not just her mammaries) when she sidled up to Robin at a party thrown by the editor of Vanity Fair, Graydon Carter. The source dished that both Penn’s sometimes almost ex-wife and the Czech model appeared to be engaged in deep conversation when Sean noticed from across the room and guided Robin to come “meet my friend” on the other side of the room.

Oh, to be a fly on Petra’s cleavage during that conversation…