Is it normal to have a dream about me masturbating to my naked cousin?

Last night, I had a dream that I visited my cousin's house, and as she walked out of her room,She was completely naked. I stopped her to ask her to put on some clothes but she went into the kitchen to do something. I followed her into the kitchen with my dick out and started to masturbate in front of her. She has a big ass and big tits so I was staring at them. Before I was about to burst into a cum fountain, I quickly pushed her down and stuck my dick in her vagina and she said "I didn't know you liked me that much, big fella". When I woke up, I had a raging boner. I don't know if I can look at her the same anymore, and I live next door to her. Is this normal?