Invisible Woman & Human Torch (Marvel Legends)
"Two siblings have never been so different. Susan Storm has always been a model of patience and humility, supported by a strength of will that has seen her through a lifetime of trials. By contrast, Johnny is rash, often foolish, and even a little bit arrogant. Still, they are bonded close together by their family ties, and have worked hand in hand ever since exposure to cosmic rays granted them both incredible power. Together with Ben Grim and Reed Richards, they change the Fantastic Four from a simple team into a family."