"I want to ask you how the plans are coming and is $8 million going to be enough?" Winfrey joked to Aniston.
"I don't know, I mean, it sounds like you are giving me Santa Barbara," Aniston replied, alluding to Winfrey's West Coast mansion.
The tabloids also wrote that Oprah would fly all of Aniston's guests to Winfrey's Santa Barbara mansion -- by private jet -- would give Aniston and Vaughn a $1 million wedding gift and would get Yo-Yo Ma to play cello at their wedding reception.
Oh, yeah -- they also wrote that Oprah was helping Aniston find a house.
"Yeah, so, OK, where did this [rumor] come from?" Winfrey said.
"I have absolutely no idea," Aniston responded. "You know what? They get more and more absurd.
"For us, I guess, at a certain point you have no other choice but to think it is funny."
Aniston later denied she's marrying Vaughn.
"No weddings. No moves," she said.
"Are you looking for a house?" Winfrey asked.
"No, I'm good, actually," Aniston said. "I have my house."