Prince Harry Girlfriend Cressida Bonas, Heavy PDA During Royal Family Ski Trip

Prince Harry and his girlfriend, model and socialite Cressida Bonas, appeared to be "on" again after a temporary split following his Las Vegas nude photo scandal.

Harry, 27, and Bonas, 23, had openly displayed public affection during a family ski trip in Verbia, Austria this week. The couple were seen hugging and kissing in public at a Verbier ski resort and at the Pot Luck Club restaurant during an annual ski trip to celebrate the birthday for his uncle Prince Andrew.

The couple who were rumored to have begun dating in May, but did not go public until they attended the London premiere of Dark Knight Rises together, were acting like "love-struck teenagers in the back of a cinema" in front of several family members including Prince Andrew's ex-wife, the Duchess of York Sarah Ferguson and their two daughters, Princesses Beatrice and Eugnie, said an eyewitness. Prince Harry stroked Bonas' hair and kissed her in front of everyone as she sat on his lap.

"We couldn't believe what we were seeing. They were not being discreet about it," an onlooker told Mail Online. "The Duchess of York and Eugenie sat just a few seats away at the time and seemed to be deliberately looking the other way, making polite conversation while it was happening. Afterwards, Harry's girl stayed sitting on his knee while they chatted to his friends."

Prince Harry was in such a good mood with his model girlfriend that he ordered a round of drinks for everyone at the restaurant.

"At one point, a waiter brought over a tray of vodka and Red Bull and Harry shouted 'Free drinks on the house!' Everyone seemed to be having a great time."

The couple continued to publicly express their adoration for each other when they hit the ski slopes the next morning. Prince Harry kissed her and constantly held the small of her back off-and-on in front of everyone on the ski mountain.  A friend of the couple revealed the status of their relationship since they reconciled.

"They are definitely dating, but it is not serious," an insider told E! Online. "They have known each other a while, but only recently has it turned into more than friendship. They are not exclusive though, just having fun."

Bonas, a model for fashion brands including Burberry, is considered a "blue-blooded socialite." She is the daughter of Jeffrey Bonas, an entrepreneur, and Lady Mary-Gaye Curzon, the daughter of the 6th Earl Howe.