I saw my Step-Brother, Damien, today, and all he was wearing was a speedo! I got a good look at what he was packing, and was suddenly filled with very lustful thoughts. I know I shouldn't think about him like that, but I just can't help myself. Besides, he was staring at my tits, so the feelings must be mutual, right? Back in my room, these thoughts overcome me and I start playing with my big dildo, sucking it, pretending it's Damien's cock. If only I was drooling on Damien's cock. I realize I have soaked my panties through, and start masturbating. Using my fingers as I think about all the fun I could be having with my Step-Brother. After one orgasm, I know I need more. I use my dildo and pretend it's Damien's cock. I fantasize about all the positions we could fuck in, and cum again. Maybe one day soon I can make this a reality. It can't be wrong to feel this good, right?