The woman's lithe body moves fluidly, her skin glistening under the harsh gym lights. Her breath comes in short gasps as she works her body, her muscles flexing and releasing. She's lost in her own world when a man's voice breaks through her concentration. "You're quite the workout enthusiast, aren't you?" he says, his voice a low rumble. She turns to face him, her eyes meeting his intense gaze. He steps closer, his hand reaching out to touch her arm, sending a jolt of electricity through her. "But I think you're missing out on the most intense workout of all," he says, a smirk playing on his lips. She swallows hard, her heart pounding in her chest as she realizes what he's offering.