I was more responding to the issue of men wanting to see they're wives get pregnant with another man. The issue of women who want to get pregnant and seemingly can not with their spouse is another issue. In those cases, it's ultimately up to the couple as to what methodology they want to use in order to become impregnated. I have always joked that I'd be more than willing, happy in some cases, to father a child with some of our lady friends but the only caveat is that I place my sperm in their vagina the good old natural way.