Hot Momma Celebrity Gossip Blog

And the new supposed culprit in splitting up the Penn’s long marriage is Sienna Miller. Sienna was said to be all over Sean at a party in a New York hotel suite while Robin was home with the kids.   A tattletale source tells Rush & Molloy:

“Sienna was sitting on Sean’s lap,” according the source. “She was dressed very sexily. She had her arm around his neck.” That night, claims the source, they stayed up quite late.

Miller’s rep insists that suggestions that the actress, now dating Rhys Ifans, was ever more than friends with Penn are “outrageously untrue. Sienna is a very good friend of Robin.  She adores and respects Robin.”

The New York media seems to be all over the place trying to find the ’smoking gun’ in the Penn - Wright breakup.  Unless Robin Wright ‘pens’ a book someday we will never know.