No, newlywed Megan Fox isn't stepping out on new hubby Brian Austin Green.
It was just another day at the office for the Transformers beauty as she kissed Lost star Dominic Monaghan, and RadarOnline.com has the sexy shots for you.
The pair will appear together in the music video for Rihanna and Eminem's hit song The Way You Lie.
Fox and Monaghan filmed the video Friday in Los Angeles, and the backdrops included a rooftop, a dive bar and a liquor store.
Megan was seen brandishing a bruise on her right elbow, which is likely a part of the video's storyline.
Last month, the dark haired beauty married Green in a private ceremony in Hawaii after dating on-and-off for several years. The marriage is the first for both Fox, 24, and Green, 37.