Paul McDonald and Nikki Reed
10/05/2011 at 06:00 PM EDT
and Paul McDonald are in the midst of wedding preparations, but don't expect their "I dos" to be anything like the lavish Twilight nuptials
"They had a beautiful wedding, but Paul and I aren't Edward and Bella, at all," Reed told PEOPLE at the Ubisoft launch of Just Dance 3 in Los Angeles.
It's been a whirlwind romance for the actress and the American Idol
alum, who met in March
and got engaged in June
The Breaking Dawn
star says they're planning a small affair, but won't reveal any wedding dress details because she says her fiancé is "super traditional and he wants to be surprised."
McDonald says they've been doing "equal amounts" of wedding planning. Will his contributions involve singing on their big day?
"I don't know," he said. "I have a handful of songs, I may bust out one or two."
One thing guests can count on at the wedding? An open bar.
"I think we're going to do a whole lot of beer, some keg beers," McDonald joked. "We might go with some High Life and PBR, you know, keep it classy."