Changing Supplement Furthur

When I first read the exert, I noticed that it was incredibly sexist and would be read that way among most people in the 21st century. I also thought of some words that could be synonymous with supplement, but would denote a more symbiotic relationship, or a relationship with mutual benefits. I came up with words similar to "complement", which another poster found to work. And while I agree, you would have to revise the sentence to not only say that one sex complements the other, but to also clearly show both sexes complement each other. In my opinion, saying a woman complements a man could still be viewed as sexist in this society without saying a man complements a woman as well.