Mandy and her step-dad didn't get along from the moment they began living in the same house together when she was twelve. He kicked her out of the house for not following his rules when she turned eighteen.
Throughout the years the relationship between the two had gotten better although there was still tension between them. When they were together for family gatherings, Mandy would spend as little time as possible with her step-dad.
Mandy had made arrangements to borrow her mom's carpet shampooer for the weekend. She was going to pick it up at her mom's house on Friday night but due to a change in plans she needed to get it during the day instead. Her mom worked until 5PM but felt it wouldn't be a problem for Mandy to come to the house earlier.
"Your step-dad should be around most of the day. I'll let him know that you'll be stopping by the house to get the shampooer."
Mandy preferred to avoid her step-dad whenever she could.
"Do you think there will be sometime during the day that he may not be around? I have my key and would rather just let myself in."
Her mom suggested she could meet her husband for lunch. That would give Mandy time to go to the house without her step-dad being around.
"I don't know why you two still can't get along after all this time? I won't even tell him that you're coming. He would probably think of a way to antagonize you without even being there."
On Friday morning Mandy received a text from her mom confirming she was having lunch with her husband.
"Your step-dad should be gone between 11:30AM and 1PM. Stop by the house during that time."
As Mandy drove to her mom's house she couldn't help but think about the relationship she had with her step-dad. She had never completely forgiven him for his lack of respect he had shown her when she was younger or for kicking her out of the house.
Even as an adult Mandy still felt that her step-dad never showed her proper respect. She often wished she had a way to get back at him for the way he treated her.
After getting the shampooer Mandy went into the kitchen to get a drink before leaving. Her step-dad's laptop was on the table.
Mandy noticed pictures showing on the screen. When she got nearer she realized the pictures were pornographic.
"Well that's not shocking. I always knew he was a pervert."
As Mandy looked closer at the pictures she could tell they weren't professional quality. The pictures were posted to an amateur photo sharing website and Mandy quickly realized she wasn't viewing the home page.
The pictures Mandy was viewing were pictures posted in a personal account with the user name InPanties4U. Almost immediately she realized it was her step-dad's account. He hadn't logged out before leaving the house and Mandy could see everything he had posted.
At first Mandy was confused by the user name until she clicked on the profile link. When the page opened she was shocked by the photo she saw.
It was a picture of her step-dad. He was standing with his hand on his hip and smiling as he looked back over his shoulder.
Mandy stared at the picture. Her step-dad was wearing women's panties. White cotton panties with floral print.
After taking it in for a moment she read the profile page.
"I'm a panty wearing sissy and have had a fetish for panties since my teen years. I enjoy wearing panties 24/7. My wife is aware and doesn't mind my wearing them."
Mandy found it hard to believe that her mom knew that he wore panties all the time and was okay with it. As she continued to look at her step-dad's profile page things became clearer.
"Although my wife knows of my panty fetish, she has no idea of my true sissy desires. Recently I have discovered that I get more aroused by looking at a man's hard cock than I do by a woman's pussy. I especially enjoy watching a man masturbate and cum. The thought of being made to sexually pleasure a dominant man excites me. I hope to someday have a Master or Mistress who helps me to fulfill my sissy desires. I want to be made to suck a cock and swallow cum."
Mandy was shocked and slightly disgusted by what she read. She felt she should probably let her mom know all about her husband's perverted desires.
For the moment however, Mandy continued exploring the site. She wasn't certain if she wanted to see the pictures her step-dad had posted but she was curious and couldn't resist checking them out.
Mandy clicked on the photo stream link. The page opened to several very recent pictures of Dan, her chubby flabby sixty-four year old step-dad. He was posing in various positions wearing a bra and pink nylon granny panties.
Some of the pictures showed him with an obvious erection and rubbing himself through the panties. Mandy found it disturbing to see her step-dad masturbating.
"Oh my god, this is unbelievable. I would have never suspected this."
When Mandy proceeded on to page two she became more disturbed by what she was looking at. On the screen in front of her was her step-dad with panties pulled down and his erect cock fully exposed.
Mandy was grossed out. She had not only seen her step-dad's cock but she was also looking at pictures of him playing with it.
"He's even more of an old disgusting pervert than I thought. I can't believe he's wearing women's underwear and playing with his cock."
As Mandy quickly went through a few more pages of his pictures she grew more in disbelief at what she had discovered. There were not just a few pictures but thousands of them. Her step-dad was wearing many different bras, panties, and girdles.
Many of the pictures were her step-dad masturbating. In others he was using a dildo in his butt. The final few pictures in most of the sets showed Dan looking very contented wearing noticeably wet panties. The description for each were similar.
"Oh yes, I do love to masturbate my wee-wee and cum in my panties!"
Even though Mandy didn't enjoy the content in the pictures she was intrigued and couldn't stop viewing them. Eventually she clicked on a link that categorized the pictures by albums.
There was one title that immediately caught her attention; "Enjoying My Step-Daughter's Underpants."
Mandy opened the album and instantly became enraged. The first picture was her much younger looking step-dad. He was wearing panties that she recognized were hers from when she was a teenager.
She became even more enraged when she read the description for the picture.
"I would love to see the expression on my step-daughters face if she knew I wore her panties."
As Mandy continued looking through the album her anger increased. She was shocked by the number of different pairs of her panties her step-dad had worn. Despite it being from several years earlier she seemed to remember every pair.
Mandy reached her breaking point when she saw a picture of her step-dad dripping cum in the gusset of one of her panties. She read the description.
"My step-daughter will never know I left cum in her panties!"
Mandy read the string of comments made about the picture along with responses from her step-dad. She discovered he rubbed his cum into the gusset and put the panties back for her to wear. She became totally outraged when she read the final response to a comment that was made.
"Yes, she definitely wore them. I found them in the hamper a few days later. She had no idea that her stinky slimy young cunt was rubbing against her step-dad's dried cum!"
Mandy had never felt more anger towards her step-dad than she did at that moment.
"I'm going to make that fucking pervert regret everything he's ever done to me."
Mandy wasn't certain how she was going to get revenge but she wanted to find a way. She then remembered what her step-dad wrote in his profile, that he wanted a Mistress to make him fulfill his sissy desires.
As she stared at his pictures Mandy knew what she was going to do.
