'Kim and Kayne eat your heart out'
The pair re-enacted a scene from the newly-released steamy video where a naked Kim straddles her rapper fiancé on a motorbike.
The original version, released Monday on Ellen
In the snap, posted by the Saturdays’ singer on Thursday, Una, 32, and Ben, 27, are seen sitting on top of what appears to be their daughter Aoife Belle's toy car.
Una with her husband Ben
While Kim is totally naked in the original video, Una preferred to stay fully clothed in front of her one-year-old - who can be seen playing in the background.
Una posted this adoroable photo of her one-year-old daughter Aoife recently