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."

"It's 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.

Even though Romijn and O'Connell walk red carpets with smiles, the truth is they feel just like every other parents of 2-year-olds: tired.