Sister helps brother solve erection problem

Sister saw her brother reading books on psychology. She asked what happened. And the brother replied that he had problems with erection. Sister immediately reassured brother, saying that it is easy to be treated with the help of cool sex. She began to make him a blowjob. Immediately there was a good erection of his brother. They began to fuck, so much so that you can not say that he had a problem with a member at all when they were.