He watches her pleasure herself in the shower

This story is about a guy who, after coming home from work, decides to check on his girlfriend. He sneaks into the bathroom to see her pleasuring herself in the shower. He's shocked at first, but then he realizes that seeing her in this intimate moment turns him on. He watches as she touches herself, her fingers dancing over her body, her hands exploring her petite pussy. He can't help but get aroused, his own cock hardening as he watches her. He wants to join her, to feel her skin against his, to taste her. He steps into the shower, his massive monster cock standing at attention. She sees him, her eyes widening in surprise, but she doesn't shy away. Instead, she welcomes him, inviting him to take her right there in the shower.