Kim moved her hand to my upper arm and squeezed. "I want to see you do lat pulls, sailor."
We moved around to the other side of the cable machine and I put a lat pull bar in place. After setting the weight, I got in position and was about to start my first set when Kim said "Don't you need to take your shirt off for this one?" True to form, I didn't pick up my cue until I looked at Kim and noticed she was biting her lower lip distractedly. Once again, my light bulb flickered on (geeze, the things I have to do to get a clue sometimes!). I peeled off my t-shirt and sat back down. As I reached up to grab the lat bar, Kim's eyes were bright.
I pulled slowly and with the best workout form I could manage. Kim watched me intently. I could see her eyes flickering all over my body and face, which turned me on and also distracted me from the pinging pains that my poor abused pecs were giving me. I wondered if my lats were going to be joining them in announcing their existence to me in a day or two and figured that, if nothing else, this relationship was going to see me get into much better shape pretty darned quick.
I completed the first set and dropped my arms for a moment. My chest was a little damp (I sweat a lot when I'm working out) and my nipples, normally partially erect, were feeling very hard. I tweaked the right one under the guise of wiping a small drop of sweat away.
Kim was clearly turned on. She was breathing a little quicker and her left hand kept straying near the top of her thigh. She'd move it towards her pussy, then stop herself, then she'd shift her position slightly and squeeze her legs together. A moment later, she'd repeat the process.
I moved the weight up a notch, got into position, and said "Second set!" I was getting tired and I couldn't pull quite as slowly on this one, but I did make sure that I spread my legs nice and wide at Kim. I was hardening a little and I could feel my cock swelling against my shorts, making a nice bunch. If it kept up at this rate, I was going to have to adjust it or have it break in half, but it felt good right now.
By the time I was done with the second set, I was very sweaty, more than half-erect, and I knew without a doubt that I'd feel all of this in my delts tomorrow. But Kim was looking decidedly hot: there was a slight flush in her cheeks that I had learned to recognize and as soon as I stood up, she was on me with the towel, wiping the sweat away and managing as much discrete hand-contact with my skin as she could.
"I didn't know this turned you on so much, Kim," I whispered as she was wiping my chest for the third time.
"I didn't either!" she whispered back. "I really didn't, but I think it's just everything we've been up to this weekend."
"Let's hit the exercycles and we can ride side-by-side."
"Yes, please!" Kim said.
We refilled our water bottles on the way upstairs to the cycling area. Although it was Saturday, we were able to find a couple of good bikes at the far end of the aerobics section. There were a few Stairmasters near us, but we weren't likely to have company as the TV was off near us. Everyone was using the bikes and treadmills at the other end where the TVs were on.
Kim and I managed a quick, hot kiss, then we adjusted the heights for our bike seats and got on. Kim said "How long shall we go for?" I said "Let's do a 20-minute cardio; that oughta be enough. We have been getting a fair amount of aerobics in already, after all."
We started pedaling. Nothing unusual about that, except that we kept glancing at each other. I was keenly interested in seeing Kim move. We talked about what was going on in our respective work lives. Kim was doing something interesting on the implementation phase of a manufacturer's production process improvement campaign and I was wrapping up the current book and had a publisher hot after me for the next as soon as I wanted to say "Yes." The money was so-so but the publicity looked great and I told Kim I'd probably sign the contract as soon as my agent had vetted it.
As we got near the end of our workouts, Kim started breathing hard and sweating. "Are you okay?" I said. Kim nodded and smiled. I looked closer and said quietly "You're getting yourself off, aren't you?"
"Yes," Kim said, in a very mischievous tone.
"What are you doing?" I asked.
"I'm pushing myself down on the seat and then pulling up hard on the pedal stirrups and rocking back and forth. It's getting me hot and wet." Kim rocked back and forth a little to show how it worked and then went back to her quieter rhythm. She was clearly warming to the task.
"Is there anything I can do to add to this?" I said.
"Yes," Kim said. "Coach me."
"What?"
"I'm going to crank the difficulty way up because I'll have to push and pull that much harder. I want you to encourage me to keep at it." Kim started poking at the controls.
"You are seriously twisted, honey, but you damn betcha." Kim smiled and then pushed the Enter button on the control panel. The bike immediately slowed down as the drag increased. Kim gasped with effort, then raised herself up in the seat slightly and pumped hard with her legs. Her quads and calves were bulging with the effort and I was the only person who would've noticed how much she was grinding herself into the seat.
Kim looked at me and said "Go on. I wanna hear it."
"Okay," I said quietly. In a much louder tone, I said "Hit that hill!"
Kim gasped at me and said whispered "Keep going."
"You can do it!" I said. "Push your legs and burn off those calories!" Kim pushed harder, which made her bounce on the seat harder. I smiled. "No slacking off. I want to see you pedal 'till you can't pedal anymore!" Kim almost burst out laughing at that but I could see a flush rising in her cheeks. "Keep pumping!" That did make her giggle, but no-one noticed.
I gave her a moment of pushing and bouncing without comment, then I said "I don't think you're trying hard enough. C'mon, kid, you've gotta make it up over the hill. I want to see you hit that crest! C'mon, it's only a minute away from you!" We'd gotten a couple of looks from other people in the aerobics area, but nobody thought much of it. After all, I was just giving her a hard coaching session; nothing unusual in that.
From my position next to Kim, though, I could see how hot she was. Her eyes were closed and her hair was soaked with sweat. She kept biting her lower lip and was pedaling and bouncing on the seat. I stopped pedaling and got off my exercycle and moved next to Kim. I put my left hand on her lower back and my right hand on her stomach and said "Good form! I want to see you keeping good form for the last bit here." Kim nodded, uncertain as to what I was doing but playing along. She straightened up in her seat and stopped bouncing, although I could feel her rocking back and forth slightly.
Since we were at the end of the row and not very well lit, my body was blocking the view for everyone else on the bikes and treadmills. Kim glanced around surreptitiously and saw that nobody would notice unless we did something really unusual and I felt her melt a little. I said "Keep up that concentration, you're almost done!" Kim giggled quietly at me and tried to stay straight in her seat while pedaling.
Keeping my left hand on the small of her back, I slipped my right hand down her stomach so my fingers were covering her crotch. Not surprisingly, it was damp. I started pressing and rubbing her pussy through the shorts. The shorts were crawling up into her pussy, making a rather pretty cameltoe. I kept my fingers fluttering up and down the shorts over where her clit was while pressing slightly on her lower back with my left hand.
Kim started cumming with a choking sound, successfully stifling the noises I knew she wanted to make. She was looking at me while she came with a look combining raw lust and adoration. To keep up appearances, I said "That's it! You've made it! Keep pedaling! You don't get to stop working just because you're coming down the other side of the hill." Kim pushed her legs a little more but as her orgasm died away, she let her legs drift with the pedals and her arms fell to her side.
Kim leaned against me and very quietly said "Oh, God, that was kinky!" In a louder voice, she said "I'm exhausted! Help me down, please." I helped her off the bike and steadied her as she got to her feet. She put her arms around my neck and kissed me and said in a stagy voice, "That was wonderful coaching! I've never had a workout that good in my
life
!" She smiled hugely at me, a smile that was also hidden from the rest of the people there. "You were amazing," she continued. "Will you coach me again sometime?"