I masturbate to my girlfriend's stepbrother's video for a big cock experience

The video features a young couple who are exploring new sexual experiences together. The girlfriend, who is in a relationship with the stepbrother, is curious about his size and decides to watch a video of him masturbating to see if it lives up to her expectations. As she watches, she becomes aroused and starts to masturbate herself, thinking about the stepbrothers large cock. The video shows the stepbrothrers hand moving up and down his shaft as he moans with pleasure. The girlfriends hand moves in sync with his, and she can feel herself getting closer to climax. Suddenly, the video cuts to a close-up of her hand moving inside her pussy, and she realizes that she is experiencing the same pleasure as the stepbrothern. The video ends with the girlfriend reaching orgasm and the stepbrothen ejaculating, leaving her feeling satisfied and fulfilled.