After the Accident

I'm David 32 married 2 children 5 and 3, my wife Pamela 30 was in accident early last year. A car crashed into a store my wife was working in and was trapped by her legs. The old lady driver had blacked out and run off the street and into the store. Pamela had to have several operations and left in a wheelchair. Pamela's mother Joanne 48 divorced came to take care of her and the rest of the family. I work as a county surveyor and was happy Joanne came to stay. Pamela will in time be able to walk again, but it will take time and more operations. She has to recover after each operation before having the next, so I knew that sex would be out of the question for a while. We have always had a great sex life before the accident. The most I've had since is a great blowjob from Joanne, she offered and I accepted. Joanne was concerned that missing sex, might cause me trouble. I've told her not to worry as she is the light of my life and I would be able cope if she had died in the accident. I sleep in same bed as her every night, I miss the sex. But can handle not getting any while she recovers, but she doubted I could handle missing sex. As it looks like it will be at least another 3 to 4 years, before our lives can return to something like normal be before the accident. 3 months ago I got into bed with Pamela and she started to talk to me about our sex lives. She touched my cock with her hand and started to stroke it. There was no chance of intercourse as her legs are in metal frames connected to each other and are in the way of her vagina. Best I could hope for was another blowjob and even that would be hard as had to lay still. Anyway while stroked my cock it got hard and then in walked Joanne stark naked and came over to the bed and she started giving me a blowjob. I was in shock and Pamela told that Joanne was going provide me with sex anytime I wanted till she was better. Joanne then mounted me and started moving up and down on my cock. I just let it all happen, I did enjoy the fuck. Joanne has now started sleeping with us and I'm getting sex even without asking, as Pamela tells her mother I look randy. So I get sex, it felt weird at first fucking Joanne with Pamela on the bed beside us. But I'm got use to it and have asked Pamela Is there a possibility of a threesome, when she is better. She said There's always a chance.