Vanessa Kirby is bumpin’ along.
The “Crown” star nonchalantly revealed she was expecting her first child while stepping out at a photocall for her forthcoming movie, “The Fantastic Four: First Steps,” in Mexico City on Saturday.
She showcased her growing bump on the red carpet, wearing a halter-style green metallic gown.
Kirby, 37, posed, cradling her bump with one hand, and later smiled alongside her co-stars Pedro Pascal, Joseph Quinn and Ebon…