My new Wife and her Daughter

I lost my first wife to cancer 2019 and in 2021 met my new wife and we married in early 2023. I 59 had 2 children with my first wife, but they have both passed away, one in a car accident the other on active service. No Grandchildren and it was just me till I met my new wife 54 and had a daughter 28, first husband had gotten cancer and passed away. It's not the thing you want to say you've in common. Anyway, both fairly well off and good jobs, she into my house with me along with her daughter. Then we married several months later, but she looked at the photos of my ex-wife and children with black ribbons and added her ex-husband photo to my remembrance gallery as I called it. She also got the idea of me having another child with her daughter, her daughter didn't date or really try to impress men to ask her out either. First, she asked her daughter did she want children and the daughter said yes but didn't want to go thru all the crap dating morons to find a suitable mate. It seems men had already left quite an impression on her, but when asked about what she thought of me. She told her mother she was lucky as good men are hard to find. That happened in stages not all at the same time, as my wife was still thinking though her idea. Finally, she asked her daughter would she carry a child for her, she said she would, no if or buts. Then she turned attention to me asked me would I like to have another child, I said I would love too, but that boat had sailed. With us both in agreement it was only how to proceed, as they the simplest way is always the best. She asked her daughter and me together to make a baby. I was thinking IVF or something along those lines. But my wife a lawyer said straight was the best way forward, after we had recovered from the shock, she asked to stay silence while explained her idea in full. Then we could ask questions, none of us are much better than average in looks. I was surprised after her telling us, her idea in full her daughter said OKAY I'm willing. Then both turn their eyes on to me, my wife having mentioned the sex would be threesome sex. I agreed as long as both of them were sure that's what they both wanted. She then asked her daughter was she taking any precautions. No was her answer, that evening we started the baby having sex. At first it was very awkward for us all I think, but as we continued it became very enjoyable. We succeeded within a month, then after she was confirmed as pregnant, the doctor told her and my wife she was having twin boys. When I was told I just say bonus, the threesomes didn't stop once she was pregnant. They are now a normal part of our relationship, also my wife wants at least another grandchild a girl. Her daughter says it a great relief having a baby and being in a relationship so perfect as ours. I made them both laugh as answered that's me perfect. The twins were born on the 7th of December.