Rebecca Romijn's different babies

Jan 13, 2010, 13:04 GMT

Rebecca Romijn is amazed at how different her twin daughters are.

The 37-year-old actress - who is married to Jerry O'Connell - understands why 13-month-old Charlie and Dolly bear little resemblance to one another physically but is particularly bemused by "easy going" Charlie's nature.

She said: "Dolly looks exactly how I looked as a baby and Charlie looks exactly how Jerry looked as a baby.

"Charlie personality-wise doesn't take after anyone. She's really easy going and always smiling, doesn't cry very much. I don't think either of us are that easygoing.. I mean we're fun but we're not that easy going!"

The twins' personality differences became apparent during the shooting of a 'Got Milk?' advertisement with their mother in September, with Dolly hating the experience and Charlie enjoying the attention.

Rebecca - who previously starred in an ad for the campaign in 1998 - explained to People magazine: "I think this is one of maybe three frames where Dolly wasn't screaming her head off and that was way more chaotic than the one that I did in 1998. I think Jerry was probably doing cartwheels behind the photographer trying to get them to calm down.

"Charlie was loving it - loving the lights, loving everyone standing around looking at her."