Mark, big guy who wants to be a big gimp

Mark "Biggie" Jackson is a big ass black powerlifter, 6ft 4 and with a broad build he could intimidate almost anyone. But, secretly he wanted something very different than his current life of competition, one night stands and constant dude talk. He wanted to be a gimp, a Big Gimp.
He´d early on realized that he loved leather, and wore it whenever he could find something that fit him. This led to him delving into leather culture, finding himself drawn to the gimps. He fantasized about being led around on a leash by a mistress, clad in all black leather, his holes plugged. But the combination of his physique and the sheer cost of getting him custom made leather gear he´d just never found a woman to do that with. Until now…

One of his workout partners had shown him the add that Cassandra had put up online, he´d played it off to his friend but asked to take a closer look and memorized the webbadress. Later that night, he filled out the form where he listed all his fetishes for this rich hot girl.
His main fetishes had always been leather, submission, dehumanization, but he´d also included hard pegging, breathplay, hard bondage, tease and denial, chastity, masochism in there, though he hadn´t tried much of it.

Seems like he was lucky as despite the website stating to expect at least 3 weeks before a response, se replied in just 3 days. Apparently she´d read his application and was really interested in having him try out to be her ****! She´d already booked a flight later the evening he received the reply and finished the email with: "I´m waiting for you Gimpy, don´t make your mistress wait to long..."

Mark left work early and packed his things then took a cab to the airport. He had a 4 hour long flight ahead of him. Although he was more nervous than in a long time, Cassandra sending her own private jet to fetch him didn´t help. The staff aboard seemed almost clueless as to what she had planned, they just thought of her a "another rich employer with random requests". Mark didn´t want to reveal exactly why he was going to Cassandra and lied, saying they were friend online who would now meet in person for the first time. After that the staff helped him relax with soft music, delicious fruit sallad, and some lemon sorbet.

The plane landed, and Mark was picked up by Cassandras driver in her Mercedes-Benz S-class Coupé. The driver, unlike the jet staff, knew what was going on. Once they left the airport and sped down curvy country roads. "So Gimpy, you done this before?" Marks shocked stare told the driver no. "Don´t look at me like that, Ms. Ziegler told me to fetch her big gimpy at the airport. I´m not allowed to let you in on to much, but I can tell you that if your kink list is a foot long, hers is three feet."

Now Marks nervousness returned. To avoid embarrassing himself, he kept his mouth shut the rest of the way. His jaw dropped when they pulled up on Cassandras mansion, it was massive! It looked to be as big as 3 celebrity mansions put together! The driver left him on the doorsteps with his bags and a quick "Good luck!" and drove off. The front door opened and Mark saw Cassandra in person...