Most of the time their relationship could be described as typical, and their sex life as almost vanilla. However, to keep things interesting they often picked a day on the weekend, or a couple days while on vacation, to dabble in mild BDSM as a spicy game. When they agreed to make a day of it, there were some phrases they always used as a part of their assumed rolls.

When it was time for the day to begin, he would say to her, “I expect you to be on your best behavior today.”

She would answer with “As always, Sir.”

With a stifled smirk and wide eyes, she knew he was now keeping close tabs on everything she did throughout the day. He kept a secret running tally of incidents, both accidental and intentional, that he would later hold against her. That night, sometime after dinner, he would suddenly announce “Naked. Now. Here.” And point to the floor in front of him. She would stop whatever she was doing, strip, and present herself for the punishment. It usually involved some spanking, some teasing, and occasionally some invasive fingering. He would recount all the issues he could remember to justify each swat. This session was the peak of their day-long foreplay, and their mutual horniness alway led directly to some very frantic sex.

But this day was going to be different. Without warning her, he had decided that today the punishment was going to be dolled out first, as a sort of credit in her account. Then, for the rest of the day, anything she did of an imperfect nature would just be assumed as acceptable.

Saturday morning they woke up and had a small breakfast of toast and coffee. Before going to shower and dress for the day he spoke those words. “Naked. Now. Here.”

She looked at him with suprise, but his demeanor let her know he was serious. She removed the oversized T-shirt of his which she slept in, and presented herself to him, slightly puzzled.

“Today is going to be different.” He said. “We will be doing this in the reverse order. Your punishment will be administered now, and it will cover any of your transgressions for the rest of the day. Within reason.” He gave her a moment to absorb this.

“Do you understand?” He asked, using his authoritative tone to press her into compliance.

“Yes, Sir.” She obediently replied.

He took her over his knee and proceeded to spank her bare cheeks. He started soft, easing her into it. After a good start he paused and spread her cheeks to visually inspect her tight pucker. The cool air on her anus made her feel extremely exposed. She found it embarrassing whenever he looked at her there.

The spanking resumed, stronger and faster. When he sensed she was close to tears he paused again to let her catch her breath. He spread her legs so that he could see the way her ass crack transitioned into pussy lips. He ran his fingers down between her thighs, tracing the delicate skin of her labia, pushing into folds with every pass. Eventually her breathing calmed and her hips began to rock open with appreciation. She was enjoying his exploration.

He resumed the spanking, bringing the painful sting back to her cheeks. She could now take a little more, and he tested her limit again.

When her breathing became labored and jerky he paused. He got out a jar of Vicks Vapor Rub. He scooped a generous dollop of the jelly with two fingers, and starting at her clit, began to work it into her vulva. Up and down, along all the folds, and eventually up to her ass crack and on that pucker. When she was a slippery mess front to back he gave her a few more spankings. As the menthol began to sink into her tender bits she let out a forceful moan. At first it was cooling, then the tingling started to burn. Her moaning turned to uncomfortable singing, working through the waves of heat.

He spanked her a few more times, aiming to match her ass to the fire in her creases. Then he stood her up.

The tears were running from her eyes. The look of struggle on her face let him know the pain in her nether regions was just right. He massaged and squeezed her breasts. Pinching and pulling at her nipples. He stood up, and led her by the nipples over to the corner of the room. He placed a penny on the wall and positioned her to hold it in place with her nose. He spread her feet apart enough for him to see her labia hanging between her thighs. The exposure to the air was good for the tingling burn. He applied a clothespin to each of her nipples and placed her hands at the small of her back in a way that made it clear she was to keep them there.

She swayed her hips ever so slightly, trying to combat the burn, but nothing was going to soothe that sting except time.

He admired the glistening fluid that was clinging to the lowest bits of her vulva.

When 5 minutes had passed he took her by the hand and turned her around. He removed the clothes pins from her nipples, and watched her wince as the blood rushed back into her swollen nubs. He looked her up and down, smiling at what he had done. In keeping with tradition he asked her, “How was that for you?”

She answered in the only way she was allowed.

“My punishment was fair and necessary, Sir. Thank you, Sir.”

“Good girl.” He replied. “Now run along and take a shower, we have a long day ahead of us.”

She kissed him and headed to the bathroom.

As the shower was warming up, she stood there staring at herself in the full length mirror. Her nipples ached, her pussy was burning, and her ass was stinging. It was going to take awhile for her senses to return to normal. In the meantime, she started thinking about what she was going to do today that would align with her punishment. The punishment had been a bit more severe than usual, but she was also nervous of pushing the balance too far the other way. His warnning to keep it “within reason,” echoed in her head. She would need to keep herself in check during the day. She did not want to discover later that evening that she had crossed over his definition of “best behavior.”