Bible

 I am a bible fanantic, I study biblelogy. 

Jesus had sexual relations with his mother the Virgin Mary. No longer were she a virgin, he pounded her like poundcake (do you pound that, I'm not sure). Since Jesus is a demi-god and Mary is a human, their child should be a 1/4 god, right? WRONG, because of the incest, Bob (Jesus's son) BECAME STRONGER THAN GOD ITSELF.

Once BOB THE ALMIGHTY was 18 years of age, Jesus's father had a homosexual relationship with BOB. BOB and God has sexual relations as well.

Because of the incest, BOB became powerful. And your child can too! Just look at these FINE results. https://www.smithsonianmag.com/smart-news/distinctive-habsburg-jaw-was-likely-result-royal-familys-inbreeding-180973688/

What a hottie!

This is also another reason why you shouldn't date outside of your race. THERE'S ALMOST NO CHANCE THAT YOU TWO COULD BE RELATED.