The gym rat's eyes never leave the enticing view of his new workout partner's ass, bouncing and jiggling in her tight shorts as she runs on the treadmill. He can't help but imagine his hands gripping those juicy cheeks, feeling the firm muscle beneath as he pounds into her from behind. He moves closer, his breath ragged, his cock straining against his gym shorts. As she steps off the machine, he seizes the opportunity, his hands cupping her ass, lifting her onto a nearby bench, ready to give her the intense workout she's been craving.