Ever since he moved to his brother's house to facilitate his studies, his younger brother couldn't help but pay attention to his lewd sister-in-law, Julia. She has sexy big breasts, a slim body and especially very horny, which is what makes his cock constantly snoop and sneak peek at the times when she shows her lewdness to the outside. The story would not be worth telling until he accidentally caught his sister-in-law masturbating in the bedroom, curiosity prompted him to stand outside the door and peep for a long time, and then bad luck struck, he was discovered by his sister. Panic and fear were the first psychology he felt, it seemed that he was in high danger of being kicked out of the house, but no, there was luck in the risk. She gave him a very gentle punishment, mainly to satisfy her unquenched fever, which was to agree to incest with her. Because he was so scared, the young adolescent boy knew nothing more than to reluctantly accept the request made by his lewd sister.