義理の妹をズボンから出して勝手に部屋に入れようとしますが、うっかりお尻が見えてしまいます

My stepsister entered my room without permission, when I arrived I found her and tried to get her out by pulling her pants but I ended up pulling down her pants and underwear, and when I saw her ass my cock stopped and I ended up inserting my cock into her ass, but she It makes her uncomfortable and I end up fucking her all over