Meghan Markle and Prince Harry Posted a Message for Princess Charlotte's Birthday (and This Is Why We Think Meghan Wrote It Herself)

We may not have a Baby Sussex update yet, but Prince Harry and Meghan Markle are showing off their auntie and uncle skills for Princess Charlotte's fourth birthday.

In honor of little Lottie's big day (the princess turned four on May 2), Kensington Palace's instagram account debuted three new pictures taken by Kate Middleton. And Uncle Harry and Aunt Meghan couldn't help but gush like the rest of us over the adorableness that is Princess Charlotte.

On the third photo posted by the Cambridges' Instagram account, Harry and Meghan's Sussex Royal account commented, "Happy Birthday Charlotte! [birthday cake emoji] [balloon emoji] Lots of love, H and M xo."

But there's more than just some sweet sentimentality for their royal niece's birthday. The Sussexes' Instagram account once again proved they're emoji pros (more so than any other royal Insta account) and signed off with "xo."

No biggie right? "Kiss, hug"? But this isn't the first time the royal parents-to-be have employed the same little signature...and it's a very American signature, at that. See, the Brits are typically in the camp of "xx" or "kiss-kiss" when signing off. So does this mean the pregnant duchess is commenting from the account herself, perhaps while she awaits the birth of her and Prince Harry's first child?

Our guess is...definitely.