Does Shia LaBeouf Have A New Girlfriend?

Shia LaBeouf sure doesn't waste any time.

The "Transformers" star, 26, is already flaunting his affection for "Nymphomaniac" co-star and girlfriend of one month Mia Goth, 19. The actor reportedly broke up with his stylist girlfriend Karolyn Pho earlier this fall after Shia performed real-life sex scenes with Goth in the upcoming Lars von Triers movie.

"They've kept their relationship under wraps, but they pretty much started dating after he broke off things with Karolyn a few months ago," a source tells Radar Online. "He got to know Mia on set and quickly became enamored of her. They have similar interests, they love alternative music, thrift stores and she is edgy and funny, which Shia loves."

There's more to love on Mia's part as Shia was recently named the highest paid male actor by Forbes. In addition to the release of "Nymphomaniac," Shia will make his Broadway debut in "Orphans" come 2013.