Please read Aunt Jo's Dirty Secret Chapters 1 to 4 to get the history of this story, especially Chapter 3.
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Jack left his mum in bed at six on Sunday evening, they had spent the day in bed and mum was glowing, Jack showered and dressed then went back to mum's bedroom. Mum had a contented look on her face; they kissed, Jack said, "Mum, I've enjoyed this weekend with you. Message me if you need me, and I'll come to you. I will tell Aunt Jo tonight that we are sleeping together, Aunt Jo will have to share me too. If she's acceptable to this, then you can come down to us."
Mum said, "I'm ok with that, but I'd prefer if you brought Jo here, she's my sister, but for the first time I would like to do it in my bed."
"I'll do that mum; I will let you know what she says tonight if it's good then have a coffee and chat with her tomorrow at the Clinic."
Mum smiled and got out of bed and went into the room she saw patients at the house. She came back with a box of pills; she said, "Jack, your cock has been very active today. These are Viagra, take a quarter of a tablet half an hour before sex, in fact, I'll cut it for you now then you'll give Aunt Jo a good hard fucking."
Mum cut the pill, and Jack swallowed it and left. In the car, he Siri a message to Aunt Jo; it read, "Aunt Jo, I hope that you're hot because I'll be with you in twenty minutes."
A minute later, Aunt Jo replied, it read, "I'm ready for you. I had a great time with Maria, but I need your cock now, I'm lying naked on the sofa, my cunts so wet thinking about your beautiful cock. I'm waiting for you, drive carefully."
Aunt Jo was lying naked on the sofa, Jack stripped naked, his cock was rock hard, but it felt harder than usual, Jack put it down to mum's pill. Aunt Jo was so horny; she told Jack that she'd lubed her ass for him, which told Jack she wanted ass fucked first. For the next two, Jack pounded her hard and deep in both holes. They went to bed as they were both tired, Aunt Jo said, "I missed your cock, Jack."
Jack replied, "Aunt Jo, I must be honest with you, mum and I had much sex over the weekend. I love having sex with you, but you'll have to share me, how do you feel about that?"
"I love making love with you; if it means sharing you, then I'll do it, do you want to do threesomes with Val and me?"
"That would be nice; then I can look after both of you at the same time, the same as I did with you and Maria, do you want to do that with Sal?"
Aunt Jo replied, "I don't have a problem with it, I can go up to Val's, or she can come down here, it will make it a lot easier when you go back to University."
Jack kissed her then said, "You should have a coffee with mum tomorrow at the Clinic and talk things through, I'll message mum, so she's not taken by surprise."