Credit: John Sciulli © Berliner Photography/BEImages

Love times two!

Party goers got a double dose of fun Sunday night at Hollywood hotspot Las Palmas -- where former Bachelor and Bachelorette stars Deanna Pappas and Holly Durst feted their engagements to twins Stephen and Michael Stagliano.

As first reported by Us Weekly, Pappas, 28, and Durst, 27, met their identical fiances, 26, at a 2009 party for 2009's The Bachelorette: The Men Tell All special. Stephen asked Pappas for her hand in May, while Michael (who starred on season 5 of The Bachelorette) popped the question to Durst in June.

At the double-engagement bash, attendees munched on Italian and Mediterranean fare (in a nod to the twins' and Pappas' family heritage, respectively) -- plus glittery white and silver cupcakes.

In attendance: Bachelor Pad stars Tenley Molzhan and Natalie Getz (who is Durst's roommate). A high point of the night, reports one insider: when the entire wedding party did a special dance to Michael Jackson's "Thriller"! The two couples slow-danced to Leona Lewis' "Bleeding Love." (DJ Lindsay Luv spun the evening's tunes.)

"Our engagement party was magical!" former Bachelorette Pappas tells "It was filled with family, friends, laughter, and tons of love! We had a blast at Las Palmas....[I] want to do it again every night!!"