I wrapped the towel around me and took my shorts and shirt off and placed them in my locker. I turned around and saw that Jack had already taken off his clothes and hadn't bothered to wrap a towel around his naked body. From the back, I could see his muscular ass and legs, smooth and tanned, and his strong back. He turned slowly just before he saw me take my eyes off his ass. I looked in his eyes, than quickly away. I glanced back and he was looking at me smiling. "C'mon, kid, lets hit the showers." He turned around to grab his towel and I got a full glimpse of his big cock. I felt my own cock start to harden and followed him into the showers. They were individual showers with doors on them, so I grabbed the one next to him. Before I went in, I took my towel off to see if he would look at my semi-hard cock, and he did. He saw him smile just before he went into the shower. I went into my own and started washing the sweat off my body. I was rubbing soap on my ass when I felt someone's hand on my ass. I turned my head and saw Jack. He then moved his finger down my crack and rubbed my ass hole, softly pushing it inside me, his finger lubed up with soap. I moaned softly, and pushed my ass into his hand. He reached around with his other hand and grasped my raging hard cock and started to stroke me. "You like that, boy?" he asked me. All I could do was moan as his finger probed my ass, going in and out. I strong hands gripped my cock firm but not too hard. I grabbed his hand and jerked myself off with him, I turned my head and kissed him, his hot tongue massaging mine softly. I reached around with my other hand and grasped his massive cock. It was rock hard and thick. I stroked his hard wet cock, back and forth, feeling every inch and every vein in his giant cock. Then he slowly slid his finger out of my ass and turned me around. He kissed me then, both of us rubbing each others cocks. His dick felt so big in my hands, I looked down at it and suddenly had the urge to suck it all. I quickly dropped to my knees and started servicing my gym daddy. His massive girth was difficult to get in my mouth, but I got as much of it as I could, which was about half of it. His meat felt hot in my mouth as I moved my head back in forth, feeling every inch of it inside me mouth and on my wet tongue. I looked up into his eyes and he looked down at me, watching me suck his dick. He put his hand on my head and pushed his cock deeper in my throat. Slowly it went down my throat, I looked down at his thick shaft as inch by inch more of it went down. I started to gag on his girth, and he pushed it farther till my lips were against his balls. "Good boy," he said to me as I was choking on his cock. "You can hold it for a little longer."
To be continued.