"What? No way" She was shocked and evern more humiliated by this request and she started crying and begging, her earlier anger forgotton. " 'No way?'" I repeated....and I started to spank her. I can't tell you how good it felt to feel her soft tight ass under my hand. Every time I brought it down she would cry out and her ass would push down making her pussy lips crush against my cock. She was panting and her bottom was red before I stopped. I looked down at her and I had to suppress a powerful urge to strip her naked and fuck her beautiful ass, knowing her big tits would be swinging beneath her. "Now, I said, open your legs up" and I ripped her panties so that they were completely off and she had the freedom to open her legs up. Pamela was still for a minute and I was worried that I had gone to far, then slowley she started to open her thighs and I was treated to a sight. Her ass hole and cunt were pink and as perfect as I could have hoped for and completely hairless. I readjusted her on my knee and then further spread her ass cheeks with my thumb and forefinger. I would have eaten out that little hole right there and then if I could have, shown her what a man of my age knows about a woman's body, what none of the idiot jocks she had been seeing would have known. I held back, I was her father figure, I had to. Taking the themometer from between my lips, I inserted it into her asshole, feeling her tense up as it went in and starting a new wave of sobbing. I knew I was humiliating her badly. 19 years of ages lying over her step father's knee with her bare ass exposed to his gaze and more, a themomenter sticking out of the most private place she had. "Hey, it's ok" I said to her stroking her bottom lightly over the reddest areas, feeling sorry for her, but still horny as hell "it's ok, this will be over in a minute. You shouldn't have pushed me Pamela. You know how I feel about rudeness" "I know daddy" she said quietly "I wanted this" I was shocked, my cock jumped. I asked her to explain herself. "Daddy, I came home because I have quit college, but I knew you would be home alone when I got in and I wanted to see if something might happen between us. You have made me hot since I met you and I can't stop thinking about you" With this she slid off my knee and knelt down between my legs with the themometer still sticking out of her bottom. She raised her arms and pulled off her top revealing her 19 year old firm swollen tits, unrestrained by a bra. "Daddy, will you play with my breasts? I've wanted you to do it for so long. I think about you doing it when I play with myself and it makes me cum" I stared at her, was this for real? All those times I had watched her bend over or sneaked a look down her blouse and wished I could fuck her. Now she was kneeling naked infront of me with a bare red ass and those beautiful big tits exposed, asking me to touch her. I had to make this good. I took her upstairs and asked her to get on the bed on her hands and knees and spread her legs as far apart as she could. God she was stunning to look at. I got some lubricant that Caroline and I used sometimes and I squeezed a generous amount on to my hand. I then moved up behind her and smeared it all over her asshole that was so open to me, sliding my finger in a little as I did it. She gasped and tensed just as she had when I had put in the thermometer and I knew for sure she was an ass virgin. This might be the only time I would get to fuck this naughty girl and I wanted it to be something special. Climbing onto the bed too, I sat with my back against the headboard and released my cock. Seeing her still on all fours those magnificent tits hanging down and her ass in the air, my cock felt like it grew another inch. "Come over here" I said. She crawled over and straddled me. I positioned my cock at he entrance to the anus, her breasts level to my face. "Sit down. There's a good girl. Sit down for daddy" and I patted her bottom. Pamela bit her lip with pain as she slid down onto my hard cock. I squeezed and rubbed my face in her puppies as she complained how it hurt. I pressed her breasts together and pulled them apart and then just left them alone to watch how they swayed and shook with the stain she was under taking my length into her asshole. When it was nearly all the way in I pushed Pamela onto her back and held her legs up and together the way you do when you are changing a baby's diaper. From that angle I could see exactly waht was going on and I finally pushed my penis the whole way into her. We fucked like that for no longer than a minute, I couldn't control myself. Watching her asshole strain around my tool, her fat tits shake as I picked up speed. Seeing her face blush because of the position I had put her in and finally watching her orgasm, maybe for the first time in her life. We haven't repeated what happened that day, although I would love to. Maybe one day she will do something wrong and I will just have to punish her again...

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