The pretty 25 year-old blonde and the 21 year-old son of a wealthy Greek shipping tycoon were spotted together Monday in Saint-Tropez on a yacht. The event was a party being thrown by Diddy, attended by 50 friends.
Hilton told People magazine, "We’re together now here. We love each other."
Saturday, the couple spent the night at the VIP Room, followed by an evening at Les Caves du Roy, another nightclub. Several witnesses say the two were kissing and very affectionate.
Hilton and Niarchos split last May after a seven-month relationship.