Kate Middleton tells Pippa: I need to find you a man!
But Now can reveal that Kate has come up with a cunning plan to try to rein in her sister's wild streak - she wants to find her a good man who'll be a steadying influence on her.
'Relations between the sisters are fairly fractured in comparison to how they used to be,' says a source.
'Kate thinks that if Pippa focuses on a new romance it'll calm her down.
'So she's planning on playing cupid by inviting a number of her single male friends to Wills' birthday bash.'
Although Pippa's never short of male attention, she hasn't been in a serious relationship since splitting with long-term boyfriend Alex Loudon, 31, in November.
Since then she's been romantically linked with aristocrat George Percy, 27 - and been embroiled in a series of scandals.
In April, her antics during a wild weekend in Paris left Kate fuming.
Oh Kate, please find her a good man soon...
Read the full story about Kate and Pippa Middleton in Now magazine dated 11 June 2012 - out now!