Megan Fox: Back Together With Brian Austin Green. Again. We Think.

Those Shia LaBeouf rumors didn't last long.

A day after reports linked her to her Transformers co-star, sources are confirming that Megan Fox is most definitely back together with Brian Austin Green.

In fact, while Transformers: Revenge of the Fallen was earning over $200 million at the box office this weekend, the actress was reportedly driving from Los Angeles to Las Vegas to meet up with Green very early Sunday morning.

An insider close to the couple tells OK! that the twosome is so totally on again.

“Megan and Brian are definitely together. They call each other 'baby' and are just so cute together. I don’t think they ever really broke up. They’re so comfortable and ridiculously cute. In the elevator Megan put on chapstick with her finger and then put the rest from her finger on his lips. They seem so happy together and so in love.”

At least this week, that is.

Once this chapstick-fest dies down, however, we hope Fox takes Kim Kardashian up on her girl krush.