12/20/2004 at 01:00 AM EST
Oh, the lengths a prince will travel for love. A week after returning from an Argentine getaway with new sweetheart Chelsy Davy, 19, Prince Harry
flew to South Africa for another holiday with the University of Cape Town student. Accompanied by pals (and trailed by paparazzi), the couple spent five days sunning and smooching at Umhlanga Rocks, a luxe Indian Ocean resort. Sharing an apartment owned by Davy's father, Charles, a wealthy landowner in Zimbabwe, they took in the nightlife and lunched at a cafe, where they ordered vodka-based cocktails called Sex on the Beach. "They giggled a great deal as they ordered," says waiter Stuart Harper. "I think they were trying to shock me." From there, the couple were set to book a private plane trip to Bazaruto, a secluded island off the coast of nearby Mozambique.
While Harry, 20, has his hands full with this new romance, his big brother's relationship with University of St. Andrews housemate Kate Middleton, 22, seems to be getting serious. Dashing rumors that the couple had grown apart last summer, Prince William
, 22, took Middleton for a weekend at the royal estate at Balmoral in November, where they hunted deer and lodged at William's private cottage, Tamna-Ghar. Middleton—who has worked as a model—also joined the royal heir at several events, including Prince Charles's 56th-birth-day party at his Highgrove estate. With the pair set to graduate in June, friends say the relationship could have staying power. "They are so similar," says an old friend of Middleton's. "She's the one for William."