The shy sister slept with her brother

The sister was always interested in what size a brother is a member. Once when she came to him and began a conversation about sex, her brother immediately realized what she was driving to. He took out his dick from his underpants and began to stroke him right in front of her. The sister watched this and smiled sweetly. Then he invited her to touch him and even jerk off. She was very ashamed to do this, but still the interest blocked everything ...