Megan Fox and Machine Gun Kelly are expecting a little bundle of joy. Fox, 38, revealed she is pregnant with her fourth child on Monday with a slick Instagram post, posing naked covered in what appeared to be black oil as she cradles her baby bump in the first of two photos.

Megan Fox is expecting her fourth baby, her first with fiancé Machine Gun Kelly. Fox is already mom to three sons, while Machine Gun Kelly is dad to one daughter.

Actor Megan Fox revealed that she is pregnant in an Instagram photo that is simply dripping with intrigue. In the image, Fox is cradling her belly while kneeling in what looks like a puddle of black paint oozing down from her skin. She stares into the camera wearing an expression that may be proud, or defiant, or both.