Though Prince Harry's girlfriend Cressida Bonas wasn't invited to Prince George's christening, the couple's relationship remains strong as they spent time together in the Queen's private home.

Prince Harry has taken Bonas to shoot at the Queen's Sandringham estate on several occasions and earlier in October they visited the private home in Norfolk with a group of friends, according to Daily Mail.

The party spent three days in the countryside, planned out by Prince Harry, and the Queen's private gamekeepers and staff. Neither the Queen nor the Duke of Edinburgh were present at the time.

Cressida Bonas' Fashion Style Being Put Under A Microscope Amid Likely Engagement?

Prince Harry and Bonas started dating in July 2012 after being introduced by Prince Harry's cousin, Princess Eugenie. They have been spotted out together on a number of occassions. They went to a James Blunt concert on London's West End and saw the musical The Book of Mormon earlier in the month.

"That Harry is incredibly serious about Bonas. But another royal wedding is not in the cards yet," a source told the publication.

A different insider said the two will be getting engaged by the end of 2014.

Cressida Bonas Bio & PHOTOS

"He loves her...they're so compatible. Cressie is very laid-back and he likes that. If all goes well, I'm 100 percent sure they'll be getting engaged next year."

Prince Harry admitted he wants to start a family soon in a May 2012 interview with Katie Couric during The Jubilee Queen special. The royal said, "I've longed for kids since I was very, very young. And so I'm just waiting to find the right person, someone who's willing to take on the job."

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