Miley Cyrus caught on Cam. Making out with a Hot Female model

Miley Cyrus who  has said recently she's bisexual seems to have gotten 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,

See more pics after the cut...