Testing out my stepsister's blowjob and fucking skill, huge facial

I was taking some sexy selfies when my stepbro came into the room. I was ready to go out with a guy that I wanna fuck. I'm wearing my favorite black dress and black lingerie underneath. I'm a little nervous about my fucking skills because it's the first time with that guy and I haven't had sex in a while. I came up with this awesome idea to test my blowjob and fucking skills on my stepbro. I know that he's always horny and ready to fuck me. I tell him about my idea, and he instantly accepts and gets hard. I start by giving him a sloppy blowjob. He said that I'm a pro at sucking big cocks. I want more, my riding skills need to be tested too. I get on top of this cock, grinding my pussy until I cum.