The photo shows Hayek holding the couple's daughter, Ines, on her hip whilecooking dinner - all while Reynolds cheers them on in the background.
Hayek added the caption: "When your friends invite you for dinner and you end up doing all the work". She also wrote the message in Spanish.
"Not safe to carry a child while cooking!" one Instagram user commented.
"Que peligroso. Jamas se debe cocinar y cargar a un bebé", a Spanish-speaking user added, which translated into English means "How unsafe".
Taylor Swift's bodyguard 'saw DJ's hand under skirt', court hears
She said she told him and his girlfriend, who was also in the photo, "thank you for coming" in a monotone voice before they left. The music artist then sought a countersuit charging Mueller of assault, worth a million dollars to the DJ's $3 million suit.
It's unclear why Hayek is doing the cooking, because we already know Blake Lively is a dang champion in the kitchen.
She was greeted by Blake and their two handsome bundles of joy: 2-year-old James and 10-months-old Ines. But she probably didn't count on having to cook and babysit.
After they finished filming for their new movie, Ryan took his set partner home to introduce her to his family. The better alternative, I suppose if you really must, would be wearing the baby on your back.
Speaking about how his culinary skills leave an bad lot to be desired, he told Men's Health: "I am not innovative in the kitchen".