Dallas' size is one of the most recognizable things about him! Not just his height, but also his impressive musculature. He's worked hard to build his body up and knows a lot about physical training. Not surprisingly, the younger, shorter boys he encounters are interested to learn more from him, hoping to be just as big as him someday. While Dallas loves these little guys just as they are, he can't resist the fun and flirtation of a little work out. He invites Austin to his studio for a little session, curious to see what the young man can do. The two get started going through some stretching and light exercises, only for Dallas' shorts to get tighter and tighter with each passing moment. His massive cock reacts almost immediately to feeling Austin's hands on his biceps and chest, completely enamored with the attention the small boy gives him. Dallas feels like an absolute god, standing tall over his adoring admirer. He wants nothing more than to feel the little boy's smooth hole wrapped around his unsheathed cock, prompting him to get a little creative with the next round of exercises. Ultimately, Dallas can't resist pounding into the small boy's tight hole, filling him up with his muscle daddy meat, and pumping him full of his alpha seed!