Gave Sis More Sex Practice

My sis crushed at my place and I just could not resist the temptation to comfort her when she told me about her sex problems with boyfriend. She looked disappointed and unsatisfied and that's when I knew she needed some good fucking to give her more sex experience. Who else to help her with cock sucking and riding practice than her well-hung brother? Sure I was up to the task and fucked her to orgasm like a pro. Hope we'll do it more!