Prince Harry & Cressida Bonas Party at a Club in London
updated 07/21/2012 AT 03:15 PM EDT
•originally published 07/21/2012 AT 10:55 AM EDT
British papers are abuzz with news of the 23-year-old, who was spotted out with Harry and his party at this week's Dark Knight Rises premiere in London.
Bonas's chaperone to the new movie was said to be the Prince's good friend Tom Inskip. But it was flirty Harry who was seen being "playful" with her at a late night visit to a club following the movie's afterparty.
"Inside the club they were very, very friendly together and getting very cozy with each other," the observer says.
The couple made great pains to leave separately, just after 4 a.m. Thursday.
Harry's cousin Princess Eugenie, who reputedly introduced the prince to his new leading lady, and her boyfriend Jack Brooksbank made up the double date.
Described by Tatler magazine as "really pretty, really nice," Bonas is not only posh but has great modeling pedigree that no doubt appeals to the helicopter pilot prince, 27.
Her mother is Lady Mary-Gaye Georgiana Lorna Curzon, who, according to the Daly Mail, once appeared in a coffee-table book half naked and covered in engine oil (a nod to her father's racing past).
Since splitting from Davy, who is currently a junior lawyer in London, Harry has been linked with a series of young women. In April, he was seen with musician Mollie King, of the Saturdays. She later denied they were an item.