Our First Black Experience - Tales of a Cuckoldress, #1

Sarah and Jim are an average married couple, living a repetitive, relatively unexciting life.  She's a busy career woman, while her husband is a former athlete, now working in sports management for a living.  Out of the blue, Sarah asks Jim about his wildest fantasy.  His 40th birthday is coming and she wants to fulfill it. Her husband is extremely hesitant at first, unable to just tell her, but as she presses, he finally spills the beans...
he wants to be cucked. Sarah is initially very confused, as she's never heard the term before.  Jim explains that he wants to see her have sex with another man while he watches... and for his fantasy, it wouldn't be just any man but a black man.  Sarah isn't sure it's a good idea at first, but the more she thinks on it, she feels it might be a nice way to spice up their mundane life.  They agree to try it and start the search for a big black man that can fulfill Jim's fantasy for his birthday and let them have their first black experience.