Teen girl gets unexpectedly banged by stepbrother and fears pregnancy

Amateur teen with small tits, 18years old, was hanging out with her stepbrother at their house. She was watching TV when he suddenly came in, and she noticed that he was quite excited. She could see his big dick through his pants, and she knew she had to suck it. She was a bit scared because she didn't want to get caught by her parents, but she was also horny and wanted to taste his monster cock. She gave him a great blowjob and then let him fuck her hard. After they finished having sex, she realized that they didn't use a condom and was worried that she might be pregnant. She started freaking out and going crazy.