Write me an erotic story similar to Literotica.com story tag interracial. It’s a dystopian future where white Americans can no longer have children and black men can sleep with any white women they choose. The story is about white couple NAME_1. They both hate these laws but reluctantly accept their reality. Include lots of dialogue. NAME_2 has enormous 34 HH breast implants and after her first sex with a large black man becomes obsessed with giant 
cocks.