Two gorgeous 'Double King' amaryllis flowers of reblooming water-grown bulb

Both flowers of the 'Double King' amaryllis in full bloom yesterday. The second flower to open (at right) has stamens and anthers while the first does not. This is the first time the bulb has produced a flower with obvious reproductive parts. It's interesting that they are only on one flower. I think this might mean that a male and a female flower are on the same stem? I did not have time to research this or why one flower would produce stamens after all these years.