Posh is said to have asked her dVb designers to sew Spanx Body Shapers into her jeans.
'Victoria never had much of a bottom and has always felt it's too skinny,' says a source. 'So she came up with this idea of padding out her jeans.
'Victoria says David is a real bum man and she thinks the Spanx idea will work,' explains the source. 'David will love it.'
Meanwhile, Posh, 33, is also said to be a fan of a £55 face cream called Natralox, which acts like a natural Botox.
'The cream was sent to Victoria some months back and we received a message from her people saying she loved it so we sent more,' Daniel Maung, the UK distributor of Natralox, tells Grazia.