Romantic or sexual activity between blood-related family members.

Use "inseki" when they're only adopted relatives, step-siblings or step-parent and step-child pairings instead of blood relations.

See also

• Siblings
• twincest
• sisters
• brothers
• brother and sister
• Parent and Child
• mother and daughter
• mother and son
• father and daughter
• father and son
• Cousins
• Self
• selfcest

The following tags implicate this tag: group_incest and twincest (learn more).

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