As you (probably) know a character doesn't have to show both primary sexual characteristics in order to be classed as futanari, although it's a predominant misconception..
No, the predominant misconception is the exact opposite, that a futanari doesn't have to show both primary sexual characteristics in order to be classified as a futanari. From Wikipedia on futanari:
"Futanari ... is the Japanese word for
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"
...
"Beyond Japan, the term is used to describe a commonly pornographic genre of
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,
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, and
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which includes characters that show both primary sexual characteristics.
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In today's language it refers almost exclusively to characters who have an overall
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body, but have both female and male genitalia (although testicles are not always present)."
So, yeah, a futanari should have both a cock and a pussy. If she only has a cock, she's not a futanari, in the same way she's not a futanari if she only has a pussy.
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