Do Tom Cruise and Katie Holmes have a joint production in the works?

We don't mean the movie kind, either: We hear they want to have another a baby.

According to friends who schmoozed with the Cruises in New York earlier this week, Katie wants to have another baby soon, and she has been hinting as much to her husband.

"She said she's got the itch," said a friend close to the pair. "Now that Suri is more toddler than baby, she said she misses having an infant in the house. And, of course, she thinks Suri would make a great big sister."

And what does Tom think? Read on for what our source told us...

Tom seems totally into the idea.

"He said if Katie wants to make another baby, she doesn't have to ask twice," said the pal of the power couple. "He always wanted more. It was Katie who has been holding off. Until now."

Sister Suri? We like the sound of that.