"Two things helped me succeed at this feat. The first was my wife egging me on, telling me "I'd really like a grandchild. Why don't you put one in our daughter's belly?" After I nutted what felt like a gallon of cum inside our daughter, as we were both catching our breath, our daughter asked "For my birthday, what I'd really like is a baby brother or sister. Can you and mom make that happen?" We did!"