Rebecca Romijn's double Hit the dreadful Twos'

Having twins is often a challenge for parents, and Rebecca Romijn can certainly relate. The actress dished to PEOPLE about her twin girls, who have reached the dreaded "terrible twos."

"Its equal parts absolutely adorable and absolutely horrible!" she said about her twins, Charlie and Dolly, with husband Jerry O'Connell. She added that bedtime is no easy matter these days for the girls, who turned 2 in December."I'm just trying to get them to bed at night, but they're 2! That's what being 2 is all about," she said.

Although Romijn and O'Connell walk red carpets with smiles, the truth is they feel just like every other parents of 2-year-olds: tired."There have been so lots of restless nights for my husband and me," she says. "If I can just get them to stay in their beds and shut up at night, I'd be pleased."And with sleepless nights comes sickness.