"Misc:incest" is ONLY for situation where at least one male and one non-male are involved in incestual situation.
Dickgirls ALWAYS counts as non-males.
Ergo, an incest between only dickgirl and/or female participants with no males involved should be tagged with "female:incest".
As practical example - thouse two are mother and daughter. Incest between a mother and her daughter ALWAYS goes to "female". Presence of penis on either or both is of no concern.
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