Royal's girlfriend said to have been invited to see the Queen

Prince William and Kate Middleton have sparked speculation they could soon marry. 

The couple apparently plan to spend August bank holiday at Balmoral with the Queen.

And insiders reckon the visit is significant.

‘Kate loves shooting so will fit in well with the Royal Family,’ a source tells the News Of The World. ‘She will take it in her stride.’

Kate, 27, was introduced to the Queen at Peter Philips’s wedding to Autumn Kelly in May last year.

Betting shops are now taking odds of 2-1 that William, 27, will propose this year.

SEE PICTURES Kate Middleton – a Queen in waiting?>>

Alison Adey