Washington, September 12 : Actress Rebecca Romijn has revealed she has no plans of having more children in fear of ''''overpopulating the world''''.

The ‘X-Men’ star, who looks after her eight-month-old twins with husband Jerry O''Connell, said she was happy to have a four-member family.

"I''m pretty sure that this is it. We feel like the world was made for pairs. Four feels like the perfect number,” Contactmusic quoted her as saying to E!.

"Also, we''re not interested in overpopulating this world. So we feel like we don''t want to leave more than we are when we leave this planet," she added.

The former model also spoke about the heartache about staying away from the kids due to work.

She added: "Mother''s guilt is no joke. I feel like any stretch of time I spend away from them, I''m worried that I''m missing out on just these little miracles.

“Like you watch them stare at their hand for an hour and they go take a three-hour nap and they wake up and they can do something that they didn''t do before - like wave!" (ANI)