Penn Badgley and Blake Lively are making everyone on the set of Gossip Girl uncomfortable because they're hooking up after every take. (Blake's also supposedly jealous of Penn's new brunette love interest on the show.) Alex Rodriguez chatted up Oil of Olay model Dara Tomanovich at Serafina. Newark mayor Cory Booker and Oprah BFF Gayle King cuddled while waiting in line to see The Dark Knight. Russell Simmons has generously offered to give Playboy Playmate Destiny Davis a private yoga lesson.

Lindsay Lohan and Samantha Ronson took the Acela train to Boston together and later went to the MGM Grand at Foxwoods. (Ronson had gigs at both places.) Shia LaBeouf was hit with a DUI yesterday after he ran into another car and flipped his Ford truck. Tom Hanks has hired an armed security guard to watch over his house in Sun Valley, Idaho, because he's feuding with the construction firm that built it. Warner Music Group has yanked a "porno rock and roll" movie starring John Holmes that it unknowingly released under its Ryko distribution arm. Extra hosts Mark McGrath and Dayna Devon are being fired and may be replaced by Mario Lopez. Q-Tip thinks Leonardo DiCaprio should do comedy because he's "actually funny." Former Miami nightlife king and mob muscle man Chris Paciello is currently hanging out in L.A. trying to pick up chicks in clubs. LifeStyles condoms wants to give Miley Cyrus $1 million to be its new spokesperson. (Her rep says she's not interested.) Sienna Miller and Balthazar Getty went to see the "Bodies" exhibition at South Street Seaport and later went to Rose Bar. Drew Carey is voting for Barack Obama because he says he won money on Obama after correctly betting on his primary victories. Donna Karan and Calvin Klein are on a safari together in Africa. Woody Harrelson and Mike Huckabee both had Kobe burgers at Uncle Jack's Steakhouse. Cindy Adams has a totally crazy interview with former Serbian leader Radovan "Number One Most Wanted on Bosnia's War-Crimes List" Karadzic.