We are glad she's legal -- because that's one sexy 18-year-old!

Justin Bieber's rumored lady of the week Hailey Baldwin, is featured in a brand-new, totally sexy video on Day 9 of Love magazine's online advent calendar.

In this video, that seems straight out of a David Lynch movie, the starlet is preening and dancing about a hotel room in a scantily clad ensemble of high-waisted denim shorts, a lacey Phillip Plein bralet and topped off with ruby red lipstick.

Bieber and Baldwin have been spotted paling around Los Angeles, sparking rumors of a romance -- ladies aren't just friends with the Biebs without getting inflicted with the Bieber Fever. The leggy blonde shut down claims of a tryst while at the Exodus: Gods and Kings premiere in New York on Sunday.

Stephen Baldwin's offspring said to E! News, "We've just been good friends." She continued, "I've known him since I was so young - since I was like 13 - and we've just been good friends over the years."

"We have just stayed close and there's nothing more to it than that," the teen added.

We think the lady doth protest too much!