Best friend Rams me with a strap on

My best friend as a k** was a girl named Stephanie. She was a great friend and later on she got super hot. She came to my graduation party and was going to sl**p over. She leaned over to me in the pool and said "Mike, let's play some badminton. If you win you can fuck me tonight. We played, and I lost, which made me pissed. She said "Don't worry, you still might get something." Later on we were going to bed, and after joking around for a while I fell asl**p. I woke up to Steph's nice round tits above me and her seemingly wearing only a grin. She said "I never said what happened if I won our little game." She stood up, revealing a 11 inch strap on that she had pulled from her bag. I nervously said "Uhh, ha ha, funny Steph, take that thing off." For that I got a quick smack across the face and a little taunt followed by an order. "Ha ha indeed, not bow down and kiss my feet." Not wanting to get smacked again I listened. I bent low and put one of her toes in mouth and she told me "Call me mistress and thank me for everything I do." "Yes, Mistress." I replied. She pulled her foot out of my mouth and said "Now on your knees you little pussy fuck!" Shocked by her sudden intensity I hesitated. This earned me a lash from the whip she took from her bag. She said "I didn't hear a thank you for that!" and whipped me again, this time I moaned out through the pain,"Thank you mistress." She said "Now on your knees." I did as she said and started sucking her big fat cock. Apparently I wasn't going fast enough, because she grabbed the back of my head and rammed it to the base of her dick. This made me fall back and gag. Coughing I said "Thank you Mistress." She pushed me flat on my back and started pushing against my asshole with her huge dildo. With each pump she went deeper, until every thrust rammed the whole thing into my ass. As she fucked me she started jerking my dick, which was a measly 7 inches compared to her behemoth dildo. As I was cumming I saw a flash and realized that she had just taken my picture, with her dick all up inside me, cumming. She said "We're going to do this again, and if you disagree, then everyone is going to see this picture, and the video the camera over there was rolling." She used her blackmail to great effect, forcing me to submit to her at least twenty times since then, and now, I'm starting to like it. If you liked it comment, and I'll tell about one of those other times ;)