Desperate Housewive's Eva Longoria is used to concealing secrets on the hit show, but is she hiding one of her own?

The normally stunningly glamorous actress stepped out in very frumpy looking tunic dress, and flat shoes for dinner with husband Tony Parker last night.

But the outfit only served to heighten speculation that the 33 year-old actress may in fact be pregnant.

Or she could just be in need of a little style tweak. 

Is she or isn't she? Eva Longoria Parker with her husband Tony Parker after dining at Nobu in Malibu last night

Eva and Tony enjoyed a meal at restaurant Nobu in Malibu last night.

The pregnancy rumours began after the actress who has been ordered to look frumpy for her TV role unveiled a very rounded tummy on the set of the hit show.

But she appears to have adopted a rather dressed down look in her private life too.

Eva was ordered by TV bosses to gain weight for her role as character Gabrielle Solis, who will be shown as a frumpy mother-of-two in the forthcoming series. 

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Eva has gained weight for her role in the new season of the show, seen left during filming, and right, her typically glamorous red carpet style

But since she plays a pregnant woman some scenes, it could be that the suspect bump is prosthetic.

The actress' desire to have kids with husband Tony Parker is not a secret. She said: 'I'd love to have a family. I've always wanted to be married with kids. I can't wait.'

'We both want lots of children. We believe that, when the time is right to have a child, God will bless us with one,' she added.

Cover up: An uncharacteristically shy Eva arrived at the beach in Malibu yesterday wearing a loose t-shirt cover up