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My stepbrother, Tyler, decides to be sneaky. He knows I'm on a website and makes a member account to talk to me privately like he's someone else. While using talk to text, I discuss what type of order he wants. He tells me that he wants a stepbrother/stepsister video. He asks if I have a stepbrother and I say yes and that he is coming over to mow my lawn today. He then asks for a video of me and my stepbrother doing it if he will. I agree if it happens. As we discuss what to do, he gets hornier and asks for pictures right before I have to go all while not knowing it's my stepbrother. He comes over and I'm in my nightgown with no panties on as agreed. I bend over in front of him, and he immediately puts his cock inside of me! (toy) I keep saying how wrong it is, and we shouldn't be doing it while I feel his big cock. He leaves almost instantly and then I'm left not really knowing what I just did. I grab my phone and send him the video.