Justin Bieber may not have fully closed the book on his past/future relationship with Selena Gomez, but he sure does look cozy alongside Hailey Baldwin right now.

The Purpose singer, who is vacationing with his family -- including his "Pops" and, yes, his adorable brother and sister -- has been shelling out photo after photo of himself and the 19-year-old fashion model-slash-celebrity daughter. And the more he doles out, the more we're starting to wonder if their friendship may have blossomed into something more. 'Cause yeah. They look good together, ya'll.

Bieber first posted this shot of himself big brothering it up (as he does best) with Jaxon and Jazmyn, and Hailey was hanging off to the side with another kiddo, so no big. Right? Well ...

Shortly thereafter, that's when he and Hailey started sharing side-by-side candids after four-running to somewhere exotic AKA his favorite kinda place to chill-pose.

Still not much to get up in arms about, considering the pair (along with Kendall Jenner) have been pals for ages. After all, he's confirmed their BFF status before, telling i-D in November that he thinks of Jenner and Baldwin as "literally the sweetest girls" with "the best hearts."

"They care about me in the same way that I care about them. When people say mean things about them, I get defensive and when it happens to me they get defensive," he said of his friends.

And it's not 100% telling that he's comfortable enough to trick her into a wet willy pose prank -- even if it is ridiculously cute.

But they sure are pretty together.

Like HOT. Hot hot hot, these two.

For what it's worth, Hailey, daughter of actor Stephen Baldwin, has had to shoot down romance rumors with Justin Bieber before thanks to their prolific social media play together. In fact, it was just over a year ago that she told E! Online not to Belieb any rumors swirling about their relationship status.

"I've known him since I was so young—since I was like 13—and we've just been good friends over the years," she said then. "We have just stayed close and there's nothing more to it than that."

Item or not, they've sparked enough attention to get the 'shippers going (sometimes literally begging the two to hook up IRL).

If they are (or ever are) together, the good news is that she totally gets along with his favorite little ones, as evidenced by their Snapchat snuggle sessions.

Whatever's happening here, it's a beautiful thing.