This is a fantasy, but there is no option for gay/bi fiction! Generally I am not turned on by guys outright and I do not really find guys attractive. This was exactly the case this morning at the gym except that I made the mistake of letting my mind wander while I was on the machines. Regular readers of mine will not be surprised that it was an older chap who led to this; a thick head of grey hair, a bit over weight, but hardly breaking a sweat on his routine around the equipment, weights as well as cardio. He sat astride a machine, his arms above him pulling down and as my gaze drifted it went up his thigh to the hem of his shorts. Forgetting where I was I instantly wondered what was further up on this nice older guy. I did a quick mile on the tread mill doing all I could to stop my semi swelling up further and like something from a comedy sketch we seemed to always be on adjacent or opposite equipment after that. I got on the exercise bike at one point but as soon as I felt the seat part my cheeks as I settled onto it I figured it was best to miss that one for the day. After what felt like a very long twenty minutes workout other pre-work fitness types started turning up which is always my leave. Despite the gym itself filling up the changing rooms were very quiet, the low music from the gym seeping through the walls. “Alright,” said a voice around the corner and I turned to see the guy. I had not seen him leave before me, but there he was standing nude in front of me, his towel hanging casually in his hand. He just leant on the wall and I stood there for a moment, my heart pounding, him just smiling. I smiled back, but that my nerves probably made it look like a very awkward, forced smile. I opened my locker and turned as I licked off my trainers and slid down my shorts, I pulled my tee shirt over my head and risked another look back at him. He was still stood there, still smiling. He hooked his finger at me, beckoning me to him. “Here?” I whispered, “no way!” “You taking those off?” he asked, ignoring what I said and flicking his eyes to my boxers. I liked his confidence and my heart rate was not dropping, the semi I had been working so hard to keep down all morning was soon going to win! I turned back to my locker and grabbed the top of my underwear and as I started to push it down I felt a bit naughty to I turned further away from him, making a show of wriggling my bum a bit as I bent down to get them over my feet. By the time I turned back he had his finger making the same gesture and I looked nervously at the door again. “Move your locker here,” he said and he walked forward to me, leaning passed he picked up nearly all my stuff and took it back round the corner, dumping it in the locker two down from his own. Seeing that it was pretty secluded there I grabbed the remainder from my locker and followed him. He closed the door and pushed my shoulders so that I sat on the bench in front of them. I looked up at him and to my delight he did not waste any time, he put his hand on my head and pulled forward, drawing me to his cock. Still soft I fumbled my face down to get it to my mouth, he is clammy from his workout but otherwise I cannot resist getting his taste between my lips. As I suck, his fleshy foreskin slides in and between we start a pumping motion that means that there is less and less skin each time he slides in as he swells hard. A movement at the door stirs us both and we leap into clumsy poses of getting dried, I like how he bent over so quickly to hide his hard on. “Alright,” he nodded across the room and I dare not look. “Hi Geoff,” came a voice and then with a change in tone he added, “all clear!” I looked over to see the guy’s back disappearing round the corner and then heard the closing of the door. Geoff, as I now knew he was called, stood up and his proud dick stood out for me to get my lips round straight away. I naturally obliged, using my lips to push his foreskin back once more over the enlarged tip of his cock. He seemed bigger than before now that I was taking him already aroused. He filled my mouth and pushed into my throat just enough to save me from gagging, though was due to his length rather than his control. I felt his tip press the back of my throat as his wiry pubes pushed into my face. I love knowing that I am taking all of a guy and so I moaned out my appreciation to him. He replied by calling me a ‘good little cocksucker’ and if his comment was designed to get a reaction it certainly worked as I took him all in and sucked down on him as well. By now as well he no longer needed to hold my head, I was pumping my face off and on him as best I could, letting him fuck his shaft all the way in and out. I was surprised when he pulled out of me and gestured me to stand up. He held his cock outright and proud and took mine in hand as well, rubbing our tips together and transferring some of my saliva from him to me. He lifted my cock, nudging his tip on my balls as well and I let out a moan, letting him know that I wished he would keep on pushing. I dropped back to the bench and lifted my legs for him, but Geoff had a different idea. “Stand up,” he told me, “like when you stripped off your pants.” The mood had taken me at this point and so I bent over for him, all the way down so that I could see him approaching me rear by looking back through my legs. I watched him squirt a small tube into his hand and then stroke it onto his shaft just before my arse hole was touched by the cold tingle of a lubed tip. I braced my body weight on the bench using my elbows and just as the thought hit me of his unsheathed cock entering me, my hole felt the pressure of his push and with what felt like a pop he pushed his cock up me. He grabbed my shoulders and used his arms to fuck all the way in and out of me and I gasped out so loud I cannot think how no one heard me. Geoff started to bang me harder and I grabbed the bench to hold still. And then my heart leapt so hard, the door went again, I fell to the bench as Geoff pulled quickly from and I managed to wrap my towel around me. I looked over my shoulder, Geoff had vanished so I composed myself. My cock had gone soft as often it does in the first minutes of getting fucked so I only had to worry about hiding my reddened and sweaty face. As soon as I remembered we were in a gym changing I found myself pretty relaxed in the situation. The new person in the room got changed and walked back out to the gym and instantly Geoff reappeared. He had showered and walked straight up to me, putting his hard cock to my mouth again. I loved how he was still hard and I imagined he had wanked all the way through his shower. He grunted as he banged my face and there was a renewed vigour to him that told me he was going to come. With a final gasp he pushed in deep and his hot come ran into my throat. He had stopped thrusting which was not necessarily a surprise, I locked on with my lips and sucked, drawing his spunking out from him. I watched his legs buckle as my suction drove his hyper sensitive cock crazy. He put two hands on my head as he withdrew from me and gasping he went silently to his locker and got dressed. I sat and wanked as he got ready, he looked at me the whole time and I wished more than ever that he was still hard. I felt so dirty, wanking with the taste of his come still in my mouth. He reached over as he went to leave and took my cock in hand. His touch was the last stimulus I needed and as soon as his stroke peaked my come shot up. He wanked me hard and shot my come up my body with out pause. Geoff left and I just got to the shower in time before some fellow exercisers returned to get changed. I figured the come up my chest and neck might have been too much of a giveaway!