May 30, 2013 - Ultimo Beachwear - Underwear Lingerie
But the blonde need not fear, as the 26-year-old is simply gorgeous whether she is with or without her Bublé baby bump.
The Argentine model showed off her perfect figure in these pre-pregnancy snaps to advertise beachwear for lingerie brand Ultimo.
It is the raunchy underwear brand's first collection of beachwear and by the looks of things those crafty designers have made swimwear sexy as well as flattering.
Luisana simply dazzles in the cleavage boosting 'Miami' bikini which promises to boost any woman's cleavage by two cup sizes (it's all down to its "pioneering gel techinques" apparently.)
The new campaign was shot earlier this year in New York by renowned fashion photographer Dan Kennedy, who has previously photographed the likes of Angelina Jolie and Lindsay Lohan - although we're sure Bublé's wife was less trouble than Li-Lo and just as beautiful as Ang.
Luisana recently revealed her husband was finding it hard to keep up with her demands in the bedroom (just wait until he sees these pictures!)...
She told Susana Gimenez (a chat show): "I don’t know if it’s true about pregnant women... but he sees me and says, ‘My head hurts, I’m tired, I’ve had enough’."
Luisana also revealed they had initially struggled to conceive.
"After six months we began trying everything people said might work," she said.
She is expecting her first child with the loveable singer, 37, on August 20.