James's sisters, Ruth and Andrea, want to follow up their fun video with a segment at the Super Bowl

By Simon Perry
Updated October 25, 2016 12:13 PM

A knack for comedy clearly runs in the Corden family.

James Corden‘s sisters, Ruth and Andrea, provided a little window into their goofy sense of humor when their talk show host brother asked them cover the NFL’s visit to the U.K. for a special segment of The Late Late Show.

Last year, James sent his parents, Malcolm and Margaret, to the game and thought it would be fun to get his siblings to follow suit at this year’s matchup between the Indianapolis Colts and the Jacksonville Jaguars.

Their YouTube video, which has racked up more than 550,000 views by Tuesday morning, shows them trying their hand at football maneuvers, questioning Dallas Clark at a press conference and entering the locker room to interview players – including Jaguars quarterback Blake Bortles.

“The whole thing was brilliant fun,” Ruth tells PEOPLE.

Ruth also says she and Andrea, who works as a part-time PA helping James, had a giggle as they entered the locker room at Wembley Stadium earlier this month.

“It was so surreal,” she adds. “You aren’t prepared for these guys so quickly stripping off! There was a lot of press. I kind of feel that doesn’t happen in our football. It seemed normal for them but from a British perspective it was different from how we would do it, and definitely interesting!”

She adds, “Me and my sister had been talking about Blake Bortles all weekend – he’s one of the big pin-ups of NFL. We ended up sitting next to him.”

Ruth, who goes by Ayres in her professional life as project manager of SelfHarmUK’s branch of Youthscape — which Prince William and Kate visited in August — admits she wasn’t a fan of NFL. “I still don’t really understand it,” she says. “But you can tell it’s incredibly fun. The game was right to the wire and you can see why it’s so popular.”

Related Video: Stephen Colbert and James Corden’s 2016 Super Bowl Ad

Despite the success of her television bit, Ruth says she isn’t giving up the day job. “I love my job and incredibly fortunate that I work for a great charity with a great ethos and I get to work with some amazing young people.”

This wasn’t the first time James involved his sister in something he created. In his breakthrough BBC show Gavin and Stacey, which he co-wrote, his character of Smithy had a sister called Rudi, with whom he would fight, hug or rap.

“We could go from being totally in love with each other and having fun and before you know it, falling out,” she explains of their home life. “That silly relationship and the raps that they do is kind of the way we were.”

“All the fun stuff, those nuances, partly comes from us. All three of us as siblings have been silly together and have a similar sense of humor. We are incredibly fortunate that fun was a big part of our childhood. We have got great parents – my dad is incredibly quick-witted. We have grown up in this sense of fun.”

Now, she just has to persuade James to let her and sister Andrea cover the Super Bowl.