I catch you red-handed, dick out and stroking. You clearly weren't making much of an effort to hide it and just as I'm confronting you I noticed you're pumping it into one of my bras. I have noticed you staring at me, checking me out, ever since I moved in. I tease you at first, but tell you that is completely understandable, I am youthful and hot afterall. I instruct you to keep stroking, this time with me watching. I tease you with my cleavage, in a bra and eventually nude, telling you to keep stroking it for these tits you're been perving over so long. Now, be a good boy and make a nice big mess for your Step-Mommy!