I didn't leave any clothes out for Tina again. Partly I wanted to test her, but I also had some other fun in mind to make our exercise session a little more interesting. I was pleased to see that she came upstairs naked after her shower. We had a light breakfast of bagels and juice. There was little conversation, and I didn't hint at what was to come.
As we went downstairs to exercise I told her, "We are going to do things a little differently today, my pet."
"Aren't we going to exercise, Master?" She queried.
"Yes we are, but with some fun changes," I answered enigmatically.
We stretched first, like we normally did, however this time I had her start without me. While she went through her routine, as I had taught her, I ran my hands over her naked body. Sometimes I would correct her position, or check to see how her muscles were responding. Other times I would play with her tits, ass, and cunt. By the time she was finished, she was not only stretched out, but very aroused.
Next I stretched out, but I had Tina give me a blow job the entire time. The sweet pleasure she was giving me with her mouth made it difficult to concentrate on my routine, but I somehow managed to complete it before she made me cum. That was good because I still had much more planned.
The first exercise was arm curls, but before Tina started I strapped a clitoral vibrator to her pussy. This unit has a normal corded remote, but I had modified it to activate with a mercury switch. Then I taped the switch to the curling bar such that it would only turn the vibrator on when the bar was brought almost completely up to her chest. In other words, Tina would only be rewarded with a nice buzz when she executed the curl correctly.
I didn't explain any of this to her, however, so she was pretty surprised when she completed the first curl. I only make her do twenty repetitions with the bar and a couple of kilos, but the last five or so are usually pretty sloppy. Not this time. I noticed that she was holding the curl for a few seconds every time instead of letting it drop right away. On the last rep, even though she was struggling, she brought the bar completely up to her chest and held it for a few seconds. After that she nearly dropped it, but I couldn't blame her.
Now it was my turn. I put twenty kilos on the bar, but left the switch in place. I instructed to Tina to kneel in front of me and suck on my cock only when she felt the vibrator running. On my first curl Tina sucked eagerly on my cock when I had the bar up to my chest. I held it there for a few seconds enjoying the sensation. I could tell from her oral enthusiasm that she was having a good time as well. By the time my final rep was completed, I was almost ready to cum. I think Tina was too.
I wanted to cool down a little, sexually, so we did some free weights after that, sans any games. It was a different matter with the stomach crunches. Tina was still wearing the vibrator and I taped the mercury tilt switch to her collar bone such that it would only activate when she brought her shoulders off the ground. It was the first time I'd seen someone do stomach crunches and moan when they curled up instead of grimacing. Near the end of her set she I could see she was close to coming again. Tina tried to hold that one last crunch, to keep the vibrator running and ensure her orgasm. But to no avail, the effort was too great and she fell back.
"No!" Tina cried out in frustration as the vibrator ceased it's exquisite dance on her clit.
I laid down to do my crunches next. Then I instructed Tina to sit on my hard cock and lean over me. Her weight on me made my task more difficult, but my efforts were rewarded. Every time I brought my head up I could just reach one of her tits to suck on briefly. This also caused my cock to move slightly in her hot pussy; it was just a tease, but it felt great. Once again, this was not enough to get either of us off, but it sure made stomach crunches more fun.
Finally I had Tina sit up straight into a squat, but keeping my cock inside her. Then I told her to lift herself off me using only her legs. She made a sound of disappointment when my cock slipped out of her with a quiet "plop." I reached down and held my cock pointing up straight at her dripping snatch and had her lower herself again until she was fully impaled on my manhood. Tina repeated this another dozen times before she came; her body shaking and her face contorting in pleasure. I never got tired of watching that, I can assure you.
After lunch I had Tina slip into one of her wrap-around dresses and told her we needed to go shopping to get her a few new things. She looked at me quizzically, but didn't say anything as we headed out the door. I drove to a nearby mall where I knew they had a couple of lingerie stores. As we made our way though the sparsely populated interior, I watched Tina out of the corner of my eye. I loved the way her tits moved beneath the thin dress. Knowing that she had no panties on underneath made it even more erotic. It's probably a good thing that the mall wasn't more crowded, for I surely would have run into somebody.
When I steered Tina into the lingerie store she stumbled slightly. I think she was a little surprised at our destination. As we made our way past the racks of flimsy garments and scantily clad manikins, I noticed only one other couple in the store. They looked to be in their mid twenties. The man was athletic looking, a runner maybe, and had relatively short hair. He looked like he really didn't want to be there. The woman was pretty, not a knock-out, but looked like she had a nice rack. She looked up as we walked past and gave me a small, polite smile. The man didn't make eye contact with me, but seemed to be trying to see through Tina's dress. This could be interesting if I worked it right, I thought.
A salesperson approached us. She was very cute, about thirty years old, with curly reddish hair and mischievous eyes. In any other store her sexy dress would look a bit out of place. It clung to her body like a second skin, showing off her small round breasts and taut tummy.
"May I help you?" She asked sweetly.
I looked at her name tag. "Yes Marie, I'm hoping you can," I replied. "I'm here to get a few things for my friend here."
She looked Tina up and down, as if appraising her. "What do you have in mind?"
I took her aside and in a low voice told her what I had planned. She understood immediately and began showing us some specific items. Eventually I picked out a light blue teddy and a red bustier, both with matching panties. On the way to the changing rooms a black fishnet body stocking caught my attention and I grabbed one in Tina's size. There were three small rooms in a closed off area in the back of the store. A curtain was pulled across the entrance to this area and each room had a door. I handed the flimsy garments to Tina and told her to try on the Teddy first. She headed for the one rooms off to the right, but I redirected her to the one that was straight ahead from the main doorway.
A minute later Tina peeked out of the door. I motioned to her and said, "Come out, show me what it looks like."
Seeing that I was standing in the entryway, she stepped out into little common area. The teddy showed quite a bit of cleavage and a lot of leg, but mostly it covered everything. It was a nice start, I thought. Just then Marie stepped up behind me and I stepped aside to let her past.
"Oh yes, that looks very nice on her," She said to me and stepped up to Tina. Then Marie surprised me by adjusting the top, smoothing it down, and fiddling with the panties. If it had been a man, I would have been sure he was just trying to put his hands on Tina's luscious body as much as possible. But with Marie I wasn't sure. There was something about the way that she was treating Tina, and they way she deferred to me. Like maybe she knew about our relationship. Interesting.
"OK, we'll keep that one. Put on the bustier next," I instructed my slave.
However before she could comply, the other couple walked into the increasingly crowded changing area. They stopped up short when they saw Tina standing there in the skimpy teddy.
"Oh, we're sorry," The young lady said, "We'll wait until you're through."
"No need. We're willing to share the place if you are," I responded.
The young couple looked at each other, and in a wordless exchange made their decision. "OK," she said, and headed into one of the other rooms while her partner stood staring at Tina who seemed frozen in place. I gestured to her to get moving and she quickly stepped back into the changing room, closing the door behind her.
When Tina reemerged from the changing room her face was almost as red as the bustier. This particular one was designed to push her tits up and together. It was scooped out such that the tops of her jugs were completely exposed right down to the nipples, which were threating to pop out. It ended at her waist, leaving only the scarlet thong to cover her naked twat. I had her turn around to show us her bare ass.
That's when the young lady stepped out of her dressing room. She was wearing a tight one-piece jump suit featuring a large diamond shape cutout between the breasts and short shorts on the bottom. I could clearly see the sides of her large tits through the cutout. With her long legs, she looked great in it. Her man whistled approvingly and I winked at her. When she saw Tina, her eyes got big.
"Oh, I LIKE that," she said, "What do you think Steven?"
"Yeah, it's pretty hot. You'd look great in that too," He answered.