It's no Kellan Lutz and Jessica Stroup, but Kate Walsh made quite the romantic splash attending the Emmy Awards Sunday night with new beau Neil Andrea.

Just don't expect the Private Practice star to open up about it.

Asked about her hot date, Walsh told the New York Daily News, "I'm not going to talk about it. I know you have to ask, but it's top-secret! It's in the vault!"

Great Seinfeld quote, but their affection wasn't in any vault.

Walsh introduced Andrea to new NCIS: Los Angeles star Chris O'Donnell as "my boyfriend," and later, the pair were seen locking lips, according to reports.

Neil Andrea: Kate Walsh's hot new arm candy.

Neil Andrea also supported Kate Walsh at the Private Practice "Blow Out Cancer" charity event to benefit the American Cancer Society Monday in Beverly Hills.

The two arrived together but Walsh talked to the press as Andrea went off to chat up her co-stars Taye Diggs, Tim Daly, Paul Adelstein, and Chris Lowell.

Walsh married film executive Alex Young in September 2007, but rather contentiously filed for divorce in December 2008 citing irreconcilable differences.

At least they appear to be getting along more amicably now, however: "Alex and I still care for each other, and I wish him nothing but the best," she said.