Roberto Martinez and Ali Fedotowsky
11/02/2010 AT 06:00 AM EDT
and fiancé Roberto Martinez
had a double date with Bachelor
alum Tenley Molzahn
and Kiptyn Locke
at the Hard Rock Hotel in San Diego. The foursome stayed in suites and reunited for bottle service, including champagne and vodka drinks, at Float Bar. Joining them: 20 of their closest friends. The group danced until closing time at the Halloween-themed festivities.