Prince Harry's girlfriend, Cressida Bonas may be getting even more serious with the Royal heir to the U.K. throne after it was discovered that the pair will be attending the wedding of her half-sister. Bonas, the 24-year-old socialite, was also photographed with the prince on the ski slopes.

Prince Harry and his girlfriend had reportedly broken up last year, but this year, they seem to have reconciled, with them planning another public outing together so soon. The fact that she will be appearing by the Royal's side again so soon could mean that their relationship has progressed.

"Harry and Cressie are at the exciting stage of a relationship where they just want to spend as much time together as possible," a source told The Sun U.K.

Friends of Harry's joked that Bonas was Harry's "girlfriend-in-waiting," according to Daily Mail. The two will head to the wedding of Cressida's half-sister, Isabella Anstruther-Gough-Calthorpe, who is marrying Sam Branson, son of multibillionaire Richard Branson. The ceremony will take place in South Africa.

The coupling is a "clear message of intent" from the Prince, who knows his way around the media, The Evening Standard correspondent Robert Jobson told Daily Mail. Harry's attitude is that "she's my girl, and I don't care who knows," he added.

The news of their planned outing to the wedding comes after the pair was spotted vacationing on the Swiss ski slopes. Harry was photographed hugging Bonas and skied with Prince Andrew and the rest of the family.

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Prince Harry's status as royalty certainly garners a lot of media attention, but Bonas herself is also well known. The 24-year-old is a model, dancer, actress and daughter of Lady Mary Gaye Curzon and Jeffrey Bonas, an "entrepreneur and businessman," according to E! Online.