Going back to their bedroom I slowly opened the door and saw Margaret moan loudly as she came to a shuddering orgasm. Her head buried in the pillow and breathless while Tom kept licking her out. She now had hold of her nipples as I assumed she had been pulling them. Closing the door again as not wanting to be seen I stood outside then a few minutes later I heard moaning again and when I pushed the door open Margaret was on top of Tom. Her plump bum was bouncing up and down on his dick which I must say was thick and long while her pussy sounded ever so wet.
Margaret had tipped her head back and her hair was swaying. I could see sweat running down her back and between her bum cheeks and I realised my dick was straining against my joggers and I was fighting the urge to go in there and lick her bum. I love women’s bums and when I watch porn I always look at doggy style videos or anal. However that would have ruined everything though and I couldn’t jerk off as dad would be here soon.
Margaret then leant forward and I could see her thick pink pussy lips sliding up and down his shaft and I could see why dad was attracted to her. I could also make out her tight bum hole through a mass of thick hair and it glistened with her juices that must have run down when Tom was licking her out. Though I couldn’t see I could tell that Tom was squeezing her boobs as his arms were stretched forward then guessing dad would be home soon I closed the door and went downstairs. As I entered the lounge dad came in through the front door and I said “You need to go to your bedroom”. He rushed upstairs as I sat down then within a minute I heard shouting and swearing. “You fucking cheating bitch” was one sentence I heard my dad say. Tom came rushing down the stairs, he quickly pulled his boxers and trousers on then smiling at me he ran out of the house.
Shouting was still going on then dad came downstairs, didn’t look at me but walked angrily out to the kitchen and about half an hour later Margaret and her daughters came downstairs carrying suitcases. Margaret stood at the lounge door and glared at me. As I gave her a big smile and she said “You bastard” then I head dad say “Don’t you dare talk to my son”. Margaret and her daughters left without saying another word then dad went back into the kitchen.
I sat there with mixed emotions. I felt sorry for dad to have seen that and because he deserved a lovely partner however Tom or I didn’t force Margaret to do anything and if she hadn’t done it with Tom she might well have cheated on dad with someone else. Perhaps I was just trying to justify to myself what I had done. Anyway at least Margaret was gone!!!
That evening I must confess I did jerk off in my bed a couple of times and as I did I imagined Margaret’s bum and her thick pussy lips. I know its probably perverse but I was aroused watching her screw Tom if though I disliked her with a vengeance.
Over the next few days Dad told me to move back into my old room so I did which pleased me and Margaret did come and collect the rest of their belongings when I was at college. During the next three months dad filed for divorce which Margaret granted. He would have to pay her some money but as she had cheated it would be a reduced amount. Apparently she was living in a two bedroom council flat in a grotty tower block which was a bit of a come down from my dad’s big house.