While all are waiting for Prince Harry to pop the question to his girlfriend of more than two years, Cressida Bonas, his sister-in-law might steal his engagement shine.

Prince Harry's Friends Don't Think Cressida is Royal Material?

Pippa Middleton, the younger sister of the Duchess of Cambridge, Kate, could be engaged before the royal to her boyfriend Nico Jackson.

An insider recently revealed, "Pippa and Nico [Jackson] have have definitely talked about marriage. I can almost guarantee we'll see a ring on her finger before we see one on Cressida Bonas."

Prince Harry Asks Cressida To Move In WIth Him?

Pippa is no stranger to stealing the show. She was talked about just as much as her sister after she dazzled in her bridesmaids dress in Kate's royal wedding to Prince William. Still, Pippa is said to be trying to keep her possible engagement on the down low because Kate, Prince William and their son Prince George are currently in Australia and New Zealand.

The source added, "Pippa's been very intentional about keeping a low profile at the request of the royal family."

Rumor has it that an engagement announcement for Pippa and Jackson will be official as soon as the family returns from their trip.

As for Bonas, her friends have made it clear she is enjoying her twenties too much to think about marriage -- especially to a prince.

One friend said, "Cressida is very busy and [has] lots to do. Marriage is not something she is considering yet. Who knows what might have changed by this time next year but that is how she wants it to be. She doesn't want to miss out on that chapter -- she's not that kind of girl. That said, her mother is ecstatic and would love them to get engaged."