The girl has been identified by Perez Hilton as DJ/producer Lauren Abedini, and she's a total babe.
Neither Demi or Lauren have made any comments about whether or not they're actually dating, but judging by the photos of them together... they definitely look extremely cosy and happy!
Demi spoke to People in 2016 about her sexuality, saying that it is, "something I don't think needs to have a label. As humans, it's just about a connection with someone."
Yas girl.