I told Sapphire to put on the same dress she had worn earlier, again without underwear, and without cleaning Mike's semen off her body. I slipped into our bathroom and pulled off the sodden G-string I had been wearing since our earlier visit to the lingerie shop. I put on a fresh pair of the cheaper thongs I had bought. Then I stole into Sapphire's room once I knew she was waiting by the front door to put her small bag of anal toys in my handbag.
I think Mike was disappointed not to be invited, but this trip was about me being confident enough to follow this through without him. Sapphire looked uncomfortable sitting down in the passenger seat of the car with the butt plug in, but not unduly so. She showed no surprise when I drove straight to the sex shop we had visited earlier in the day. She did seem surprised, however, when I confidently walked up to the sales assistant at the counter -- a woman in her 30s with green hair and numerous piercings. "I would like to look at your range of strap-on vibrators please."
Sapphire followed meekly behind as the sales assistant led me to a nearby rack. "You used the word vibrator," said the sales assistant, "but I just want to confirm you would like one that vibrates rather than just a dildo. The vibrating ones are more expensive."
"Yes, I would prefer one that vibrates."
"And are you looking for a model that is designed with pegging in mind, or one that is more designed for vaginal penetration?"
This flummoxed me. "Sorry, what's pegging?"
The sales assistant obviously took her job seriously, and that included providing non-judgmental help to the naïve. "Pegging is when a woman uses a strap-on to anally penetrate a man." Until now my focus had been on the evening ahead with Sapphire, but now I was standing there wondering whether pegging might be something to try sometime in future. "Maybe you would like to keep your options open," said the sales assistant gently. "We have a couple of models with interchangeable parts. May I suggest this model? The primary shaft is smooth and not too large, and then there are several sleeves that you can put over the top if you want something bigger or more textured. The added benefit of this model is the small butterfly-like part at the base of the shaft that provides pleasure to the person wearing it."
"That seems ideal."
"Would you like it in pink or black?"
"Pink please."
I fancied that I could see a look of pride on Sapphire's face. Only that morning I had confessed to being too scared to go into a sex shop, yet later that same day I had just arranged to buy a significant sex toy and I was in the process of making a few smaller purchases to use up the value of my voucher. I also bought a small bullet vibrator and a sanitizing spray.
On the drive home we passed by an industrial area, and I soon spotted what I was looking for -- an empty car park surrounded by blank walls on three sides. I parked so that the car was facing the busy road, but far enough away so we wouldn't be too obvious. I told Sapphire to turn around and kneel on her seat, then I pulled her dress up to her waist, exposing her bottom to the distant road.
Sapphire knew what I planned to do as soon as I produced the anal lube and the middle-sized plug. I confidently applied some lube to the plug, but then my plans unraveled when I couldn't see how to proceed with only two hands within the confines of the front seat of the car. Sapphire came to my rescue. "Would you like me to hold that one for you? Now, I would suggest putting on one of those disposable gloves. When you pull out the plug, simply remove the glove while still holding the plug and it will end up safely inside the empty glove. I'll clean it when we get home." By following Sapphire's instructions and acting quickly, the larger plug slid home with a minimum of fuss.
"I hope Mike appreciates the trouble you're going to for this," said Sapphire.
I laughed. "Yes, I trust that when he's balls deep in your ass that he'll remember that it has come at the cost of my convenience."
"Okay, I get your point," smiled Sapphire. "How about I say how much I appreciate all the trouble you're going to. I have no right to expect that a master or mistress would bother with getting my body prepared. Thank you."
I laughed again. "I'm happy to accept your thanks now since I suspect you might not be in the mood to thank me later. At least Mike is only average in size."
Sapphire looked thoughtful. "That might be true, but he'll certainly be the largest I've had back there."
"Really?"
"Oh yes. A lot of the girls who do the parties laugh about it. Successful real estate agents are often men with something to prove, or should I say something to compensate for. I'll have to warn the girls to try to avoid Mike at the next party."
"I'm not sure if we'll get to another party," I said. "Mike's only just starting out. His big sale was a total fluke."
"That's a pity," Sapphire looked sad, but then she grinned. "How about you? Are you any good at your job? Maybe your work would like to implement an employee reward scheme."
"There are mostly women at my work, so I think most of them would prefer to win some young stud. Plus, I don't think that would be so popular with Mike."
"Men are so sexist," giggled Sapphire.
When we arrived home, I gave Mike a passionate kiss. "Can you sort dinner for us please?" I wheedled. "Sapphire and I have lots to do to get ready." Mike looked crestfallen to be excluded again. "Don't look so sad," I said. "Don't forget what you've been promised for tonight. Keep your eyes on the prize."
"I'd like to," he said with an exaggerated pout, "but you keep taking her away from me."
"Here, will this help keep you going?" I asked as I pulled Sapphire's dress off over her head. I'm sure his eyes were on her bottom as I grabbed her hand and pulled her from the room.
I grabbed all my shopping for the day and my hair trimmer, and I went with Sapphire to her bedroom. When I tipped my bags out on the bed, Sapphire immediately grabbed the glove-wrapped butt plug I had removed in the car and took it through to the bathroom to clean it. I stripped off all my clothes and followed her. I told her to have a shower as I wanted her to look desirable to Mike, and I wasn't sure he would want her to be still covered in his dry semen from earlier. While she was in the shower, I sat on the toilet and trimmed my pubic hair.
Once I had showered also, we both got dressed in our matching red lingerie sets complete with the stockings and garter belts. "Man, we look hot," I said as we admired ourselves in the mirror. "Are you ready?"
"Not quite. Were you planning on putting the biggest plug in?"
"I was intending to wait a little bit longer. Why do you ask, slave?"
Sapphire blushed. "Because I think this is probably the best time to empty my bowels. If you wanted, I could change the plug at the same time."
"Go to the toilet, by all means, but put the same one back in. I want Mike to take some responsibility for this too."
As I sat and waited for Sapphire, my mind replayed the experiences we had shared on that bed earlier in the day. The restraints were still attached to the head of the bed, and the old clothes Mike had cut from her body were lying on the floor nearby. As I recalled the scene, I couldn't help but imagine me in the position Sapphire had been, tied up, stripped, plugged, and forced to orgasm with a vibrator. The idea was making me very horny.
When Sapphire came out of the bathroom and announced she was ready, I had a surprise for her. "Sapphire, I want our outfits to match completely. I want you to put the small plug in me."
"Yes Mistress," she said. She was trying to keep a neutral expression on her face, but I felt like she could see right through me. If she was starting to suspect that I wasn't too different to her, I was certainly starting to suspect that myself.
I got on all fours on the bed. Sapphire pulled the string of my underwear to one side and started to spread the special numbing lube around with her finger, including slipping it inside me a few times. She seemed to be taking an extraordinarily long time.
"I'm ready," I said.
"It's best to wait a few minutes for the lube to really dull the nerves." I didn't know that, and I hadn't given her that benefit.
"Don't wait," I said. "Shove it in."