Write me an erotic story similar to Literotica.com story tag interracial. Include lots of dialogue. The story protagonists are white married couple NAME_1 NAME_2 NAME_3. NAME_3 has massive 34 HH breast implants. One day government agents show up NAME_2 bring NAME_1 NAME_2 NAME_3 to a secret underground army base where NAME_4 lives. NAME_5 is the first NAME_2 only supersoldier the US ever created. He's a 6'8" muscular black man with a giant footlong penis. He is impervious to bullets NAME_2 has been kept a secret since world war two. Despite being in his 80's he looks like he is still in his twenties. NAME_5 has chosen NAME_3 to be his lover NAME_2 mother of his children. If she agrees she will be permitted to live in the bunker. NAME_3 agrees out of service to her country NAME_2 because of how undeniably turned on NAME_5 is as a perfect physical specimen despite NAME_1's protestations.