Latsis invited Reid and crew to his family's private estate for a pre-party before dancing at several nightclubs, E! Entertainment Television said Thursday.
The 29-year-old actress, whose screen credits include "Van Wilder," (search) "Josie and the Pussycats" (search) and the "American Pie" (search) movies, also faces her fear of parasailing with the help of tandem riding friend Hilton, co-star of "The Simple Life" (search) reality series.
"Meeting up with Paris and Paris was such a highlight in Greece. Dancing at the clubs was a blast," Reid said in a statement. "There are just certain people you know you'll always have fun with, and Paris (Hilton) is definitely one of those people."