Jerry O'Connell: Locking Lips With Wife's Costar?!

Actor dishes on on his upcoming guest appearance on Rebecca Romijn's new television series, Eastwick

Jerry O'Connell is kissing and telling. But it's not wifey Rebecca Romijn he's talking about.

O'Connell tells us that his upcoming guest stint on Romijn's new ABC show, Eastwick, involves some smooching with her costar and close pal Jaime Ray Newman...

"I'm hooking up with Jaime," O'Connell, 35, said at yesterday's Camp Ronald McDonald Halloween Carnival. "There's a kissing scene, but there is no jealousy. They're very good friends. There'll be no weirdness."

While O'Connell says he'll likely take his and Romijn's baby twins, Dolly and Charlie, to the set, he's looking forward to getting back to work.

"I'm hanging out with them too much," he laughed. "I'm speaking in baby talk. It's ridiculous."

Daddy O'Connell is also busy with law school. "It's going really well," he said. "But I don't know if I'll be head of my class...Sadly, there are people who are a lot smarter than me."

—Reporting by Dahvi Shira