Beautiful step sister surprises with unexpected move

In a typical day at the dorm, a young guy with an average dick is hanging out with his step sister, who just so happens to be a total hottie. She's been teasing him for a while, and now she's ready to take it to the next level. She starts off by giving him a mind-blowing blowjob, her mouth working magic on his cock. But that's not enough for her. She wants more. She wants to feel his cum inside her. She's never been fucked before, but she's ready to try it. She's always been curious about it. She's been watching porn and reading about it, and now she's ready to experience it first hand. She's a little nervous, but mostly excited. She's about to get her first taste of real sex. And it's going to be amazing.