Pippa Middleton might already be pining for her own baby with Nico Jackson based on the lock screen photo of her phone showing nephew, Prince George, and sister, Princess Kate.

According to People, a fellow traveler was passing by Pippa Middleton at the Heathrow Airport and the teenager managed to get a glimpse of her lock screen photo.

Grace Stroup, 16, dished to the magazine "She said thank you and was extremely nice, and then I did a double-take and instantly knew who it was."

The witness claimed, "She pulled out her phone and her lock screen had a picture of George and Kate, smiling together looking just like a regular family - it was so cute!"

Despite being accused of hanging on to the coattails of her more famous sister, the Duchess of Cambridge Kate Middleton, Grace Stroup insisted that Nico Jackson's reported fiancée was very courteous.

The witness described Pippa Middleton as "extremely lovely and polite," even if she was rushing to get to her gate so as not to be left behind by her flight.

Stroup insisted, "She had a grace about her ... It was surreal to see her looking so normal."

There are no wedding plans, much yet a baby, on the horizon for Pippa Middleton and fiancé Nico Jackson.

The marathoner is actually trying to carve her own career away from the Royal Family as she joined the "Today" show as an on-air correspondent.

According to Grazia magazine, as shared by Independent, their busy schedules have been the most pressing issue between Pippa Middleton and boyfriend Nico Jackson.

"Long distance has been tough on them. It's difficult to find time for one another and Nico seems to be getting fed up with it all," the source said.

In the middle of last year, Pippa Middleton's boyfriend reportedly left a job in London to join Jabre Capital in Geneva as a stockbroker, which further complicates things if ever she had plans of getting a wedding and having a baby.