Miley Cyrus has bagged herself a Victoria's Secret model ... and during a break from filming a new music video Tuesday night in Los Angeles ... they locked up in a heavy make-out session.

The girl's Stella Maxwell﻿, and she and Miley have been hanging out quite a bit lately. Miley posted a photo with Stella a few weeks back and captioned it,

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The photo and video were shot Tuesday night in a parking lot in Hollywood. They both saw the cameras and clearly kissed to make a point, and it did not seem like a typical Miley gag.

We had to blur the video because Miley's hand goes south with Stella's help.