Nikki Reed's ability to make us jeal beyond is well-documented.

And her super sweet romance with "Vampire Diaries" star Ian Somerhalder? Please. It's only pretty much the most green monster-inducing thing that has ever happened. Because this is a couple that is madly in love and not afraid to plaster their happy all over the place -- which, hey, we're not complaining or anything.

In the latest instance of their little show, called Hello World, It's Nikki Reed And Ian Somerhalder In Lurve Nana Nana Boo Boo (at least in our minds), Nikki Reed may have just revealed her too-sweet little nickname for her man.

"I love this human. My human," she wrote on Twitter Monday (June 8).

A quick study of her Instagram feed -- yes, it's come to that -- reveals that this isn't the first time she's used this playful moniker for her main squeeze.

She captioned her beachy honeymoon scene like so: "Salty...sandy...sticky...sunburned. The best. I love this human. My human."

Then, on their one month anniversary, she shared their wedding video with the same "my human" lingo in her song-like sweet cap.

So, there you have it. He's her "human." Which is especially ironic-cute since they both played blood-thirsty vamps on-screen.