Breeding my sister in law

I'm Bruce 34 and married to Lacey 32 and have 3 children, we live next to my older brother John 38 and his wife Jean 37 no children. John works on a oil rig and is gone for weeks at a time. Lacey told Jean was depressed as they had been trying hard to have a child and hadn't succeeded. Jean had got tested and no problems with her were found, but John is like a mule and you can't get him to do anything he doesn't want to do. Then Jean jerked John off while he drunk and out to it and collected his sperm and the test revealed a low sperm count. John would never agree to I V F or anything and it wasn't any chance they would have a child. Lacey was in her the final period of her pregnancy with our third child and Jean was helping care for the other 2 children. I don't know how they came up with idea, but they did. Lacey would get sperm from me and they would insert it into Jean and hopefully she would get pregnant. Restricted to periods that John was home or close to it, Jean would've sex with John and Lacey would give relief as she calls it and collect my sperm for Jean's use. But timing was everything and it didn't pan out as required. Finally Lacey just asked me straight out about getting Jean pregnant, I was shocked and at first said no way. But she persisted and worn me down, the same week Lacey went into hospital to have our daughter, John had been home and had left shortly before Lacey had to go into hospital. After the birth Lacey was alone with me and got me to promise to try and get Jean pregnant. Jean and our other children came in to see the new baby. Lacey told Jean tonight the night, only Lacey, Jean and me knew what it was about. As was usual when Lacey was in hospital Jean stayed overnight and watched over the children. That night after the children were in bed Jean joined me in my bed and we fucked twice that night and again early in the morning. I wasn't sure whether she would get pregnant from the first tries, but we hoped for success. The next time John was home and Lacey told me, John has a great big smile on his face. Shortly after John and Jean came into our home and John told us Jean was pregnant. Jean was also very happy, after a hugs all round. John turned his attention to his new niece. John and Jean also had a daughter last month and both mother and child are doing great.