The Olsens' Night Out, Tension at Yankee Stadium

• Mary-Kate and Ashley Olsen and their boyfriends, Nate Lowman and Justin Bartha, had super evening out the other night. It involved steak, making out, tickling, and "chain-smoking cigarettes until after 4am." [P6]
• Derek Jeter and Alex Rodriguez aren't on the friendliest terms these days. Now things have turned frosty between their respective girlfriends, Minka Kelly and Kate Hudson. [P6]
• Heidi Pratt appears in the new issue of Playboy. But you won't find any nude pics of her in the magazine. She says she won't strip down completely until after she has a few "upgrades" performed by her plastic surgeon. [Us]
• Kourtney Kardashian is pregnant. So who's the father? Either she's not saying because she plans to use the news to gin up ratings for her crappy reality show, or becaue she doesn't know herself. One or the other. [E!]

• Not surprisingly, Michael Douglas and his first wife say they're very sad and disappointed about what's happened to their son as of late. [People]
• Mischa Barton has been hitting the gym and is totally determined to get into shape, you'll be pleased to hear. [People]
• Kate Gosselin says the fact that her soon-to-be ex-husband has been running around with a new girl every day has been really "hurtful." [MSNBC]
• Howard K. Stern's lobel lawsuit against Rita Cosby, who authored a book about Anna Nicole Smith in 2007, has been given the OK to go to trial. [NYDN]
• Taking a page from his ex-wife's playbook, perhaps, Guy Ritchie's new girlfriend, Mellany Gandara, is 14 years his junior. [NYDN]
• Anna Faris and her boyfriend report they're married. [People]
• Kendra Wilkinson and Hank Baskett say they're expecting a boy. [People]
• Oksana Grigorieva, Mel Gibson's pregnant girlfriend, says she doesn't know what sex the baby will be. Nor does she know if they'll ever get married. [Us]
• Matt Damon put on 30 pounds for his latest role. [NYDN]
• It looks like Justin Timberlake isn't planning to move to Greenwich, after all. Then again, he didn't really seem like the Greenwich type, did he? [Us]