Stepsister Likes Milking Her Stepbrother

I guess I have to call myself a lucky guy. I have a sexy Stepsister that I live with, and she loves to do crazy sexy things with me. Today she came into our bathroom where I was taking a shower. At first, she needed to use the bathroom but after seeing me wrapped in only a towel, her sex drive kicked in and she went to her knees to start sucking my cock. In no time at all I'm fully erect and she takes me into her bedroom. She has some restraints on the door and quickly binds my hands. Now that I'm restrained, she takes her clothes off and teases me with her body. My Stepsister knows I have a smoking fetish, so she lights up a VS 120 cigarette in front of me and begins to smoke and stroke my cock. This absolutely drives me crazy and my stepsister knows it. She begins to milk my cock like I was a cow. Man, that felt unbelievably good. I just have to fuck her now. With my stepsister still smoking, I fuck her doggy style until I bust a nut all over her face and chin.