Okay, maybe "besties" is a bit of an overstatement.
It's more like "Kate and Meghan have met, which has the British tabloid press convinced that Harry's gonna propose any day now."
Sure, Kate has met several of her brother-in-law's other girlfriends, but certain media outlets have been searching for hints of an engagement for months now, and they're taking whatever they can get.
According to OK! magazine, Harry and Meghan recently took a trip to Norway to see the Northern Lights, because Harry's romantic date game is incredibly strong.
When they returned to the UK, Harry reportedly arranged a meeting Meghan and Kate, because his in-law game is pretty solid, too.
“Kate was really looking forward to meeting Meghan and she knew how important it was to Harry," a source tells the tabloid.
“They are very close and he really values her opinion on girlfriends."
If you were hoping Meghan and Kate hit it off and planned future princess parties, you're in luck:
“It went really well and Meghan was very excited about meeting her,” says the insider.
While there's been no official news of Harry and Meghan getting engaged, those who are inclined to see every single thing the couple does as a step closer to the altar are at it again:
“I can see them engaged by spring,” another source claims.
“I know that sounds a bit crazily soon, but he’s head over heels and they can’t bear to be apart."
While it does seem a bit early to start making wedding plans, it does seem as though Harry and Meghan are speeding right past all the usual relationship milestones.
Harry met Meghan's dad in Canada last month, and there have been rumors that he asked for permission to propose.
Obviously, Harry's not the sort of potential son-in-law you say no to, but he's an old school bloke, and he's reportedly spent some one-on-one time with Meghan's dad, hence the rumors that they talked marriage.
Meghan met Harry's father, Prince Charles, just a few weeks after they started dating, which also resulted in talk of wedding bells.
At this point, about these could break up and date other people, and tabloids would claim that they're engaging in individual marriage practice, as per royal custom.
Don't get us wrong, Meghan and Harry probably will get engaged at some point in 2017.
But the press can go ahead and stop putting every freakin' thing they do under a microscope.
We kid, of course, as that will never happen.
Hope you're not a fan of privacy, Meghan!