Liam Hemsworth and Maika Monroe have been spotted displaying some major PDA during a July 4th party. The two are not official, but they are definitely hooking up.

The two met on set of their new movie Independence Day: Resurgence and the chemistry between them couldn’t be stopped.

US Weekly reports that a bunch of eyewitnesses at the Hollywood party saw the two actors being very flirty together.

“His hand was on her butt as she was grinding into him and they were making out at the bar.”

Another witness said, “Liam was draped all over her. It was so PDA and in-your-face!”

Even though they are cute together Monroe and Hemsworth are not officially dating. Still, the two went on a date on July 7 to grab some drinks together in Malibu.

Miley Cyrus supports the relationship as well. IB Times reports that Cyrus congratulated Hemsworth on finding Maika.

A source says, “Miley heard about them hooking up and she has no problem with it. She thinks Maika’s hot—she like, ‘High-five Liam!’ And Miley’s busy with Stella right now, so she’s not worrying about it.”

Credit: INFphoto.com