[This story refers to bodily functions, so those offended by that kind of content should read no further. All characters are over 18.]
Barbara was becoming accustomed to her stepmother Glenda's dominance. The college sophomore knew she would be subject to her only slightly older stepmom's need to control for so long as Barbara chose to live at home. Her dad, Nick, clearly was entranced by Glenda and seemed to enjoy her taking charge of Barbara.
Nick was quite a bit older than Glenda but he enjoyed the assertiveness of his wife and looked forward to seeing her spank his daughter with her panties down. This occurred sooner than any of the three of them might have expected.
They were having dinner and Glenda decided to demonstrate how she could embarrass her stepdaughter, despite Barbara's being only a few years younger and in college.
"Barbara," Glenda asked, with seeming innocence, but knowing how her stepdaughter resented her insinuating herself into Barbara's affairs, "are you still seeing that boyfriend of yours, Frank?"
"Yes," Barbara said, "not that it's any business of yours."
Glenda knew that this would get Nick annoyed and he quickly showed his ire, "That's no way to talk to your stepmother, Barbara."
"I wouldn't have said that if she didn't keep harping on what I do and," Barbara now was losing her cool, "embarrassing me in front of my friends."
"Barbara still needs to pay attention to her cleanliness, and I will not apologize for insisting on it," Glenda contributed.
Nick had been waiting for a chance to see Glenda spank his daughter and now he rose to the occasion, "Glenda, I think my daughter needs some disciplining until she learns to show both of us some respect."
Glenda smiled and said, "If that's your feeling, I suppose I had better take her across my lap now."
"Oh no, please, Dad," Barbara wailed, "this is so unfair!"
"Barbara," Nick said with unusual firmness, "you need to stop behaving like a baby and speak respectfully to your stepmother and to me, too. Now you do what she says or I'll take you across my knee."
The prospect of her father's spanking her really scared Barbara, so she stood up and apologized to Glenda, knowing she was in for a spanking at the least.
"Thank you for apologizing, Barbara," Glenda responded coolly. "Now lift your skirt and lower your panties for your inspection."
"In front of Dad?" Barbara asked incredulously.
"Oh yes," Glenda answered briskly. "Your father needs to be aware of my efforts to make you keep yourself clean especially in places you don't want anyone to see."
Slowly, Barbara raised the short skirt that Glenda was now making her wear and pulled down her hicut pale green panties.
Glenda came over, bent to examine the crotch and saw a tell-tale thin light brown line in the panty crotch.