First, althought this was short I did enjoy it and want to see more. Not only can you express yourself through your art, but your writing has some potential also.
Now to a few of the nits that I see.
Crystal pulled the red dress over head and flung it into the corner. The room was littered with similarly tossed clothing. Inconceivable as it was, she didn't have a thing to wear. Carefully she tip-toed over the mess, half tripped on a black pair of slacks and landed on the bed. She sighed deeply. It's finally the big night and nothing is sexy enough.
"Enough!" she thought to herself. "He isn't really going to care that much, nothing I wear is going to stay on long anyway." She giggled at the thought. The italics here are not necessary, we can tell from the descritives that she is thinking to hereself.
Picking back up the red dress, she smoothed out the wrinkles and slid the silk over her skin. With a shake, she settled the dress in place and smiled. Now delete Words like now, then, and next are rarely necessary to a story. Read the sentence again without them, and it it makes sense that way, leave them out. she stepped over to the dresser and pulled open the top drawer. An array of colors burned the eyes. She rustled I see a comma here, and then rustling, something like this. An array of colors burned the eyes, rustling through she selected... This makes the flow a bit better.through and selected a cherry thong. Balancing on the covered floor she slipped the thong into place, pulling extra snug.
"hmmmmm," Using a period makes this two sentences, which does not really work, and probably was not what you intended since you did not capitalize. she breathed as the tight satin cord bite into her cheeks.
She reached back into the drawer and pulled out a pair of fishnets, then delete with a heavy grunt she kicked the rest of the clothes and accessories in the corner. Finally she opened the shoe closet, and selected the ballet boots. Carefully, leaning on the wall, she eased the stockings over one leg and then the other, giving them a final tug as she stretched. Before placing the boots on, she decided to put on her jewelry. Out of the box came a pair of hoop earrings in gold, a diamond nose stud, and her golden collar. Happily Crystal popped them in place.
"Snug as a bug." She told herself, then seated on the edge of the bed, she tucked her right foot into the tall ballet boot, tightened the laces and lifted her leg to get the full effect. "Nice." Done admiring herself she put on the other shoe. Gave them both a swift couple of kicks and moaned as her feet touched the floor. She was certainly glad she was not going far on foot tonight. Again, the italics are unnecessary.
A knock at the apartment door shook her mind free from the pain of those first few steps. He was here! She gasped as she took a step too fast on those high shoes. Not sure it is anything but a quibble, but earlier you said boots and here you say shoes. Detracts a bit from the story, though I did not notice in the first reading. Then delete slowly walked to the door. The thong rubbed hard on her pucker. Crystal's feet screamed at her. Her throat tugged at her collar. She was soaked. He would surely be pleased, she hoped.
Reaching down, she grasped the doorknob and turned.
As I said, this story has potential. do not let the nits scare you away.
You need to look at your writing the way you look at a picture you draw. Does it flow constantly? Are their places that detract from rather than enhance the subject? Did you put all the colors in properly.
The main problem I see with this is you did it too fast. You made this a sketch rather than a finished piece. There is nothing wrong with doing a sketch, but a story should be a complete, welll thought out picture.
As a first effort this is actually quite good, keep up the good work.