It was around 9 o'clock when I awoke, having that feeling that someone was watching me. I looked at Grace and she looked so peaceful, lying there with a contented look on her face. She still had her hand around my cock and must have slept like that, for I remember her gently squeezing it just before I fell asleep. I moved closer to her and gently kissed her brow, and as I did her grip tightened and she gently ran her hand up and down my half erect member. I thought she was still asleep but she must have been waking just as I kissed her. Soon my cock was once again standing to attention and wanting more of this woman.
As her hand moved faster I kissed her more deeply and soon she was pulling my cock closer to her and telling me she wanted me to fuck her one more time before we got up for breakfast, and the inevitable facing her daughter. As I began to roll on top of her she stopped me and said she wanted me to take her from behind, and as she said this she rolled over and got on her hands and knees and pointed her firm arse at me. Not wanting to disappoint her I moved behind and positioned my cock at her waiting hole.
We were fucking this way for a few minutes before I got that strange "someone is watching" feeling again. I turned my head towards the door and nearly died when I saw Joyce standing at the half open doorway. As I went to speak Joyce put her finger to her mouth and motioned for me to say nothing, as she gave a wink and a sly smile. I realized that she was enjoying the show and did not want her mother to know she was watching her being fucked by her son-in-law. I was a bit worried about performing like this, but thought that as she already knew what her mother and I had done the previous night, and had not complained, then why should I stop now.
I continued to push my cock in and out of her mother's wet cunt and the more I pumped into her, the more she moaned and kept telling me to fuck her harder.
"Oh yes, that feels so good, just keep fucking me please, make me cum again," she cried.
Being a good son-in-law I did as requested and pounded harder and deeper into her canal. The more I pounded the louder her demands were, and the more she moaned and pleaded with me, the closer I was to cumming inside of her.
"Yes, yes, fuck me, I'm cumming," she cried as I felt her muscles tighten around my cock as her juices began to flow.
A few moments later I was yet again spewing my sperm deep into her pussy and we both collapsed onto the bed with me landing on her back. As I rolled off of her she turned to face me and she locked her arms around me as she kissed me deeply.
"That was soooo hot watching you two do that," Joyce said as she clapped her hands.
Grace spun around in shock and saw her daughter standing in the doorway, and she realized that she had seen the whole thing. She was in a state of shock and not sure what to say, not even thinking about the fact that she was laying there totally naked for her daughter to see.
"Mum, don't look so worried," she told her mum.
"I'm sorry dear, it was not supposed to happen last night, it just did somehow. I guess we all had too much too drink," Grace shyly said.
"It's OK mum, I am not angry, I think it is nice that you can have someone give you so much pleasure and I am just glad I got to see you enjoy yourself," she explained to her mother as she licked her lips.
Joyce came over and sat on the side of the bed and gave her mother a hug and told her how happy she was for her and soon Grace was shedding a few tears as she told her daughter how much she loved her and thanked her for sharing me with her. As I watched mother and daughter exchange hugs and words of love I could not help but start to feel excitement growing between my legs.
"Wow Tiger, are you ready to go again so soon?" Joyce laughed as she saw my cock begin to stand.
With this Grace began to laugh and soon the two of them were staring at my cock and Joyce started to tell her mother again how hot the two of us looked and how horny it had made her feel.
"Well," Grace started, "I can leave if you two want to fuck, after all he is your husband," she added.
"No mum, I watched you get fucked by him, so I guess it is only fair that you get to watch him fuck me now," she replied.
I could not believe what I had just heard, Joyce was telling her mother she could stay and watch us fuck. What was more amazing was that my cock was willing and able to do it once more after having done it so many times over the last 24 hours. While my mind was wandering on this line of thought, Joyce bent down and began to enclose her mouth around my cock and started to suck it for a few moments before lifting her head and turning to her mother.
"Yummm, it is a very nice cock, isn't it mum?" she giggled.
Joyce opened her gown and slid it off her shoulders to reveal her nakedness below. As her mother and I both looked at her body Joyce straddled my legs and lowered her pussy down onto my cock and inserted it into her already wet cunt. As she rode up and down on my pole I looked at Grace and was amazed at the look on her face; her mouth was slightly open and her eyes were wide open as they looked directly at my cock going in and out of her daughter's pussy.
"Don't just sit there with your mouth open mum, either say something or join in and let him lick your cunt," she told her mother.