After humiliating her step-dad two different times Mandy was already feeling very much in control of him. Things seem to be progressing towards her ultimate desire of making him the sissy that he fantasized being.
From the pictures and messages her step-dad posted on his photo sharing website Mandy knew of his fantasies for being dominated. He specifically wanted to be made to suck cock and have his butt fucked while dressed as a sissy in bra and panties.
It had been two weeks since Mandy had discovered her step-dad's secret. She had already made him her sissy slave and she was ready to continue towards turning him into a sissy who sucks cock.
Mandy met with two of her gay friends and told them what she wanted to do. She hoped they might know someone who would be willing to dominate her step-dad. At the very least she hoped they could give suggestions on how she should go about finding someone.
Mandy's friends were confident they could help her. From what she knew of her step-dad's fantasies she gave them a description of the ideal person.
"He should be in his fifties or sixties and of a larger stature. At least six feet tall and two hundred fifty or more pounds would be ideal. Obviously he needs to be very dominant and it would be perfect if he had a big fat uncut cock."
Her two friends smiled at each other as Tom commented.
"That sounds a like lot Bill."
As the other nodded in agreement Mandy was curious.
"Who is Bill?"
"He's a guy that used to post a lot on Craigslist when it was big. Bill's only about five foot ten but everything else about him is just as you described. Even the fat uncut cock. He was really into dominating older sissy straight guys that wear panties."
Mandy was thrilled by the prospect.
"Do you think Bill would make my step-dad suck his cock while I watch?"
Both of the men laughed and Tom responded.
"There's no doubt he would do that. He'll gladly shove his big fat cock up your step-dad's sissy ass too and fuck him good."
Mandy's friends agreed to get in touch with Bill and let her know if he was interested.
In the meantime, Mandy started thinking about her next humiliating task for her step-dad. Later that night she attempted to again access his photo sharing account to get some ideas.
Mandy felt certain that her step-dad didn't know she had his password. As she had hoped the password hadn't been changed and she was able to log in.
Almost as soon as Mandy started going through the various photo albums that her step-dad had posted she again saw the one titled "Enjoying My Step-Daughter's Underpants."
This was the album that really got her attention the first time she was on the site.
Mandy recognized almost every pair of panties. In many of the pictures her step-dad was wearing her panties while masturbating. In some he was smelling them. In others he was jerking off and squirting cum in the gusset.
As Mandy viewed the pictures she felt that same extreme anger as the first time she saw them. It was bad enough that her step-dad had cum in her panties but it was even worse that he put them back in her drawer for her to wear.
On this night Mandy took her time while looking through the album. She viewed every picture and read every description her step-dad had added.
One of the last pictures Mandy viewed for the night was her step-dad sniffing the gusset of her dirty panties. She read the description he had written under the picture.
"I love being able to smell my step-daughter's stinky pussy in her dirty worn underpants!"
Mandy already was forming ideas as to the humiliating things she would make her step-dad do during their next session together.
"That fucking perverted bastard is going to wish he never messed with my panties."
As part of her fun, Mandy planned to make her step-dad smell some very dirty and stinky panties. She prepared by wearing the same pair of nylon bikini panties for the next three days.
During that time Mandy only washed her body by hand rather than showering or bathing. She avoided cleaning her butt and pussy to make her panties extra smelly from her body odors.
Mandy also masturbated each day while wearing the panties. She rubbed the crotch into her slit to make certain the panty would have the full smell of her dirty pussy.
On her third day of wearing the same panty, Mandy added one final touch for her step-dad's perverted sniffing pleasure. After having her daily BM, Mandy pulled her panty up without wiping. She sat and rubbed her butt around causing a very obvious skid mark from her poop in the seat of her underpants.
Mandy had thought of something special for her step-dad's humiliation and she wore a short denim skirt on the day of her planned fun. She took with her a skimpy G-string panty that no longer fit her big butt and the dirty panty she had worn for three days. One other item Mandy took with her to her step-dad's house was a puppy pee pad.
On her previous visit, Mandy had given her step-dad prior notice that she was coming to see him. This time she didn't. She knew there was a chance he may not be home but she felt the element of surprise would be worth it.
Mandy was happy to see her step-dad's car parked in the garage when she arrived. As she walked inside without knocking her step-dad became angry.
"What the hell are you doing? I've told you before to knock on the door and not just walk in uninvited."
"Your mistress is always invited and I'm getting tired of reminding you of that. You are my sissy slave and you will always welcome Mistress Mandy when she enters the room. If I have to remind you again you will be severely punished. Do you understand?"
After a moment of silence her step-dad responded.
"Yes Mistress Mandy. I'm sorry for my disrespectful behavior. I will always welcome you."
Mandy smiled.
"That's more like the attitude I expect from my slave. Now why are you still sitting there sissy? Did you forget the proper way to greet your mistress?"
