Guide Note

Genetic sexual attraction refers to a sexual attraction between close relatives. Individuals who are genetically linked, but not raised together, may experience a natural affinity when they meet later in life.¹

Fast Facts

1. May lead to incest
2. May be a consequence of separation caused by adoption
3. Most common between siblings¹
4. Also found between father-daughter, or mother-son pairs¹
5. May also occur between cousins¹

Westermarck Effect

Psychologist Edward Westermarck postulated in 1893 that individuals who are raised together in childhood develop a natural aversion to sexual attraction to each other, perhaps as a biological protection against inbreeding.²

Quotes

"I knew it was illegal...Of course I knew it was illegal. But so what? Emotions take over."—John Deaves, on the relationship with his daughter, Jennifer³

"John and I are in this relationship as consenting adults...We are just asking for a little bit of respect and understanding."—Jenny Deaves³

Disclaimer

The content on this page is not a substitute for professional medical advice. Please contact a doctor for information on Genetic Sexual Attraction.

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