Demi Lopez's stepbrother failed his gynecology and was really upset about that. That naughty Latina decided to help her stepbro out. She knew shit about gynecology, but she had a pussy which he could study. She pulled her shorts and panties and then spread her legs wide opened. Dude was so nervous that his hands were shaking. Demi sucked his finger to make him feel relaxed and then put it on her clit. Soon he put his two fingers in stepsister's pussy to and began sliding them in and out. Of course he couldn't resist the temptation to lick that yummy muff. He was eating Demi's cunt until she came. That was the most effective, informative and educating lesson he had ever had.