I get home early and interrupt my little sister, apparently she was going to fuck her boyfriend, but he runs away and leaves my little sister tied up and at my mercy, the truth is that I have been attracted to my sister for a long time, she barely turned 18 and she is already a great body, so I can't miss this opportunity. At first she doesn't want to satisfy my desires, but after coming inside her several times she begins to awaken her most perverted desires, so I continue filling her with milk until she also reaches climax.