Ξύπνησα την ετεροθαλή αδερφή και τη γάμησα

My stepsister didn't even know that this wasn't her boyfriend. I quietly opened the door of her bedroom and woke her up with caresses. She thought it was her boyfriend and didn't even look at me. It was the best sex ever, I cum on her asshole and left, she didn't even know.