It looks likes Princess Harry's girlfriend Cressida Bonas has babies on the brain as the blonde was spotted with a particular book while arriving at a Christmas Carol service in London on Wednesday, December 4th.

According to Us Weekly, while her 29-year-old boyfriend is currently off on a 16 day, 208 mile trek through the South Pole, the 24-year-old was photographed carrying a stack of books with one titled "Why Love Matters."

Princess Eugenie of York's girl pal wore her hair swept away from her face as she was dressed casually wearing a short, black coat over an ivory-colored sweater and a pair of flared jeans.

Cressida Bonas held tight to her two books and a large red folder as she made her way to the gathering.

The socialite looked away from the cameras as the paparazzi snapped photos of her book "Why Love Matters" with the words, "What's love got to do with it?" prefaced across its back cover.

The magazine claims that while the title may hint at romance the book is in fact about how affection shapes a baby's brain.

The model also toted a book called "Perspectives on Play," which is a manual for students who are in training to teach young children.

Bonas previously studied at Leeds University, where is she is an alumni of the Laban Conservatoire of Music and Dance.

However, with her new set of reading material the royal of Wales' girlfriend maybe looking into a career as a teacher as her relationship with Prince William's little brother is becoming more serious.

Following their latest hunting trip at the Queen's Sandringham estate on October 26th, a source revealed, "He loves her -- they're so compatible," adding, "She's a lovely girl and everyone is hoping they go the distance."

For photos of Cressida Bonas click HERE.