The 34-year-old star was asked about the possible wedding at the red carpet of the UNICEF's 70th anniversary event and the actress said she "would love to go anytime," reported E! Online.
"I love London. I would go anytime... I mean the Queen just has to invite me if that's what you're asking!" the "Quantico" star said.
Not revealing much about the couple's romance, Priyanka continued, "I'm a friend. And I'm going to be a good friend to whatever my friends' needs, not just her."
"Girls just wanna have fun @meghanmarkle @mubinarattonsey #LAlife," Priyanka captioned the photo.