As the sun rises and the morning dew glistens on the grass, our protagonist’s stepsister begins her workout routine. She dons her tight athletic wear and starts her stretches, her muscles rippling under her skin. Our protagonist watches her from his hiding spot, his heart racing with desire. As she moves into her squats and lunges, he creeps closer, his cock already hard. He waits until she’s in a deep squat, her pussy lips peeking out from under her shorts, before he makes his move. He grabs her by the hips and pulls her down onto his throbbing cock, her moans muffled by the sound of her own breaths. She tries to resist at first, but her body betrays her as she writhes beneath him, her legs wrapped tightly around his waist. He pounds into her, his cock stretching her tight pussy in ways she’s never experienced before. She claws at his back, her nails digging into his skin as she gives in to her desires. He pulls out and flips her over, her ass in the air as he slams into her from behind. She screams out in pleasure as he hits her G-spot, her body shaking with ecstasy. He continues to fuck her, his cock coated in her wetness as she cries out for more. As they both reach their climaxes, their bodies entwined in a sweaty mess, they both know that they’ve crossed a line. But the taboo thrill only makes the experience all the more intense. They both collapse onto the grass, their breaths coming in short gasps as they bask in the afterglow of their morning workout.