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AlexmalMTZ

For more follow @xxstudssss

A former football player, Brock already knew how to work out -- gaining muscle wasn't the issue. Now older, he wanted to slim down and lose the bulk he still had from his jock days -- my specialty. As a former baseball player in college, I'd transformed my own body with age to a slimmer, tighter physique that most older athletes were now trying to achieve.

"Great job, Brock," I assured him as he sat panting doggy style on the gym floor, "that's a wrap for today. Get some water and walk around the gym for a minute, and then we'll head to my office for your measurements."

Usually something we did before the workout, Brock had arrived really late today because of work, so we'd decided to get the workout done while the gym was still open and do the measurements after I locked up.

"Damn, my ass hurts," Brock said looking at me as he stood sweating on the gym floor as he squirted water from his bottle into his mouth.

"That was an amazing workout, man," I encouraged as I walked around turning off treadmills and putting up stray barbells. "We need to do these later workouts more often if that's the energy you're going to give."

I felt Brock's eyes follow me around the room as his body turned to whichever direction I was moving during my quick cleaning. As one of the two owners of the gym, I was the operational side of the business while my partner was the financial business arm. This meant long hours closing up by myself as we built up the gym to hopefully add even more employees soon.

"OK, let's head to my office and see how we've done," I said walking past Brock to the light switch and flipping the gym into darkness.

I could feel the heat coming off Brock's broad body as he followed me closely into the locker room. My office was intentionally built into the locker room to help give me access to my clients in private. Part of my regiment with these men was to pay close attention to their measurements and progress during their transformation, so it only made sense for me to have an office in the locker room like a coach would have.

I unlocked my office door and turned on the light before throwing my keys, clipboard and cell phone onto my desk. With no windows in the room, my office consisted of my desk against one wall and a scale and other measuring equipment against another. Besides a chair against the wall next to my desk, the only other seating was an armless leather chaise at an angle in the remaining free space. The furniture choice was intentional as I worked with big, muscle jocks that weren't built for tiny chairs with arms, and the leather was easy to wipe down.

"Fuck, I'm already sore," Brock whined in his deep, masculine voice as he walking into my office in only his jock.

I looked at the handsome husband and father as sweat glistened across his broad shoulders and round pecs. Brock was covered in a light dusting of black hair across his chest and down his firm stomach, but he was not overly hairy.

"I'll give you a rubdown after we record your progress," I promised as I gestured toward the scale.

Brock got on the scale and looked straight ahead at the wall covered with polaroids of my clients shirtless on their first day. He looked at his own picture and was deep in thought as I moved around his body with my flimsy measuring tape.

"I can't believe how fucking big I was," Brock finally said out loud like the thoughts in his head were a conversation between us.

"You look so good, stud," I replied quickly without thought.

"Stud, huh?" He responded with a smirk in his voice.

I'd never called Brock a stud before -- or any of my clients, but the word had escaped my mouth before I could catch it.

"Give credit where credit is due, right," I said followed by a nervous laugh as I continued my measurements.

"Thanks, Clint, "Brock said still looking forward at the wall. "I feel good again. I feel like I'm getting my mojo back."

I looked up and watched as he moved his right hand across his sweaty left pec. I knew what that comment meant -- Brock was feeling sexy again. This was a common thing when my clients really started to see the transformation. They had a new raw, sexual energy when they finally saw the change they'd been seeking.

I crouched behind Brock and wrapped the measuring tape around his thick left thigh. With his bare jockstrapped ass in my face and his intoxicating man musk filling my nose, my mind was starting to get cloudy as I felt my cock slowly moving in my own jock.

I put dropped the measuring tape to the ground without writing down his stats and placed my left hand on his left thigh. My right hand went rogue and cupped the bottom of his right butt cheek before slowly moving my hand up the sweaty mound of flesh.

I sensed Brock's head move to the right as he felt my hands on his body. He was surprised at my soft, deliberate touch, but he didn't protest or say a word. Instead, he bent slightly forward and pushed his ass toward me as an audible sigh escaped his lips. It was clear that Brock needed to be touched.

My hand moved to his other butt cheek and moved around slowly before stopping at the top of his crack. I could tell he was holding his breath in anticipation. He was waiting to see if my hand would make its way to his hole, and we both knew it. We now seemed to be communicating with our bodies and movements. We were completely in tune.

"Fuuuccckkkk," Brock moaned as my tongue slid across his tight, pink hole.

I don't think he breathed for a full minute, but Brock's ass was now pushing back into my face as my nose pushed deeper into his sweaty butt. His hand was quickly behind my head pushing my tongue deeper into his throbbing pussy. Fuck, he tasted so good.

"That's it, boy, lick daddy's tight fucking cunt," Brock moaned sternly as he took control. "Slide that tongue inside me, man."

I felt my cock oozing copious amounts of pre cum from my shaft as it soaked the front of my jock and athletic shorts. I was feeding as hastily as my tongue and mouth would move as I devoured his tasty hole. I'd eaten a lot of ass in my day, but Brock's big ass was the best thing I'd ever tasted before.

"Oh, good god, this is fucking intense, man," Brock continued his verbal assault. "I should've known you were a fucking faggot, but this is the best feeling in the fucking world."

Divorced with a son who lived with his mother, I had become a huge cock slut in my new life. While discreet and always with men that absolutely never wanted it known that they fucked around with men, my reputation as a straight jock was still intact. It's not that I give a shit, but I knew it would be the kiss of death with my key demographic if I was outed as an ass licker.

I slurped and slid in and around Brock's virgin hole. In my mind, I figured this was probably the extent of a one-time "slip up" for Brock, so I was surprised when he told me to get on the chaise after holding my head tightly to his butt.

I took one last taste before jumping up, practically ripping my jock and shorts from my body and laying on my back on the chaise. I didn't know what Brock wanted to do next as I watched him free his massive rod from his jock. He gave his thick, cut cock a few strokes before pushing his jock down his massive thighs to the ground.

His eyes locked with mine as he held his dick in his hand and slowly made his way to me. He stood looking down at me stroking as we kept eye contact. I stroked my own cock as I waited for him to speak.

"Not a word of this to anyone," Brock barked in a low voice. "I've never done this, and this doesn't make me a fag."

"Of course not," I said with my best expression to convey that it was crazy to think this would make him a fag. "You just need drain those big fucking balls, man. You need to release that seed."

That seemed to be enough for Brock as he nodded a quick approval and spit into his hand. He reached behind him and added his spit to the massive amount I'd already donated to his hole. I was in shock as I realized in my haze that this meant he was going to take my cock.

"Take it easy at first," Brock said with a stern face. "Then you can wreck my hole."

He stood on the chaise and slowly moved his massive body down into a squat over my leaking shaft. He held in hesitation for a minute before I felt his virgin hole touch the head of my dick. It felt amazing as his pussy slowly allowed my rigid cock to work its way inside against its warm, wet walls.

To my surprise, his tight hole swallowed my big dick all the way in as I felt his butt cheek against my balls. I was balls deep inside Brock's sweaty ass.

"Hold on," Brock barked down at me as I moved slightly.

"Sorry, I didn't mean to push in," I assured him. "Fuck yourself on my cock when you're ready."

I was careful with my words. I knew Brock needed to be in control. He wasn't a bottom bitch taking his trainer's cock -- in his mind he was the dominant jock using his fag trainer to get off.

It worked. He slowly began to move on my needy cock. Each thrust up my shaft was rewarded with a pleasurable ride back down, and Brock immediately loved the feeling. He couldn't hide how much he enjoyed my cock in his ass.

"Fuck yeah, Clint," Brock bellowed. "You feel so fucking good deep in my jock ass, boy."

His dirty talk was turning the heat up as we both got into the sweaty fuck with each thrust pushing us further into lust.

"Yeah, boy, fuck my big ass, man," Brock continued. "Fuck, I need that thick fucking cock to pound my ass. Give it to me, man. Pound. Me."

Soaked with my own sweat, a river of Brock's sweat was now flowing over my body as my cock jackhammered his tight hole from below. He was a natural bottom and it was obvious this would not be the last cock in his big ass. The muscle jock was now a needy bottom who would deny he liked being fucked until he absolutely needed a deep, primal gutting.

His eyes were starting to get very small as his head fell back and he pinched his own nipples while my cock jabbed his insides with force. He raised his head for a second before leaning down over me and putting his hands on the chaise on either side of my head. We locked eyes for a minute before they quickly rolled back in his head without warning.

"Fuuuuccccckkkk," he moaned with other unintelligible words as I hammered his hole.

His head quickly moved down toward me and I was surprised by his lips meeting mine before our tongues met in an intense battle. Our sloppy kiss was more than I could take. My balls were tight against me, and I knew I was about to load his pussy with a huge batch of warm cum.

Still kissing, Brock moaned into my mouth as he felt my seed fill his hole. I was somehow silent as my body convulsed with each shot deep inside the straight jock's battered insides.

His anus clinched against my cock as his body quickly gave way to the sensation of my subsequent soaking of his guts. He began to shoot an enormous load onto my chest and then across my lips and nose. The next forceful shot landed in my ear and onto the chaise as he continued to fuck himself with my cock as he worked every last drop out of his balls. No longer shooting cum, Brock continued to blissfully ride slowly up and down on my spent shaft.

A minute later, reality set in and Brock quickly slid himself off my hog and stood next to the chaise looking down at me. His gruff jock demeanor returned and his face looked conflicted.

"This was a one-time thing," was all Brock said before walking out of my office.

I cleaned up and waited to hear the sound of one of the showers starting but it never did. I walked out to the locker room, but Brock was gone. The shame of what we'd just done must've been too much. Still naked, I returned to my office and realized Brock's jock was still on the floor. I picked it up and held it to my nose.

"Fuck," I said after inhaling his musk deep into my lungs.

"He'll be back," a voice said behind me as I jumped and turned toward the door to my office.

My business partner, Nate, stood naked in the doorway stroking his cock with a smile.

"Fuck, man!" I yelled at him.

"Fuck is right," Nate said with a lustful expression on his face while he stroked. "That guy is now a giant muscle bottom."

Nate and I laughed out loud before I focused on his cock as he stroked in front of me. We'd never done anything together before -- Brock is also married with kids, but now he was standing in front of me jacking off after spying on our sweaty fuck session.

"What, you like cock now?" I asked in a surprised tone.

"Why don't you lay back down and let me experience the same feeling that guy just did," Nate said with deep, deliberate eye contact.

"You sure about this, man?" I asked giving him a final out.