(You may want to read the first two chapters before reading this one since it is a continuation of the scenes started in the first chapters.)
My Mother had made sure my big cock with its fat head had gone all the way into Rose's tight pussy. Our house girl was naked on all fours on my bed and my Mother was standing right beside me with her right hand playing with my balls. She would separate them and then gather them back together. It made going in and out of Rose feel even better. My Mother moved and stood behind me and spread my ass cheeks and started touching my asshole. Each time she touched it I would plunge deep into Rose and she would yelp like a pup.
My Mother put her finger in her mouth and wet it and then started pressing harder against my sphincter muscle. My asshole was gradually opening to my Mother's probing. When her finger broke through, I went so deep into our house girl's cunt that she didn't just yelp. She cried out in both joy and pain. My mother handed me her panties to put in the girl's mouth to muffle her screams. I hadn't known my Mother had removed her own panties.
Thinking about my Mother's naked vagina and having her finger up my ass made me pound Rose with all my might. Just before I was about to cum I was pulled off the help by my mother and she slapped my cock to make it go down some. It took a number of slaps before she got it as soft as she wanted it.
"You can cum yet big boy," she said to me as she pulled her skirt up to show me she did not have any panties on which I already knew. Her fat pussy lips were engorged. She was wet. She had obviously enjoyed the show.