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.

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.

Parenthood isn’t a new role for either star. MGK, for his part, is father to 15-year-old daughter Casie, whom he shares with ex Emma Cannon. Meanwhile, Fox shares sons Noah, 11, Bodhi, 9, and Journey, 7, with ex-husband Brian Austin Green. (Green, for his part, has moved on with fiancée Sharna Burgess, with whom he shares 2-year-old son Zane.)