It looks like the Prince Harry and Pippa Middleton dating rumors just won't die down, no matter how many times the rumors have been proven to be not true. This time around a new report says Prince William's little brother and Kate Middleton's little sister have somehow managed to keep their relationship on the down-low, as they have been spending a lot of time in Pippa's London apartment while keeping the paparazzi cameras at bay.

According to OK! Magazine on Wednesday, the supposed couple have been doing a great job of fooling everyone, as they've managed to keep their romance well hidden from the media. What makes it even more suspicious is that this is the first time that both Pippa and Prince Harry have been single at the same time, as they haven't been spotted with any significant others in a long time, too.

One eyewitness says Harry was spotted at The Cross Keys pub in London last week, which is located right next to Pippa's flat in the Chelsea neighborhood.

One source told the site, "Pippa conveniently lives across the street. That's probably why he's there. He's known to hang out at this pub a lot and they hang out here together."

What's more, another insider says that Prince Harry was spotted drinking a pint of beer and acting as if it was just another night out with his boys, even though they were all wearing hats to disguise themselves.

What's more, friends say that there's a reason why Harry frequents the bar so often and it's so he and Pippa can hang out there while incognito, and so far it's been working for them.

So far Buckingham Palace has not made any comments about the report.

Keep up with Enstars for all the latest news on Prince Harry, Pippa Middleton and all of your favorite British royal celebrities right here.