DD asked at 3 and ende dup getting the entire details because that's what she needed. I was pregnant at the time, so there you are. I didn't find it bad, but then when a lesbian couple we're close to had a baby, boy, did that ever confuse her! I did find the "Well, another man made the sperm come out into a cup and they put it inside her..." "But how did he make it come out? Why did it come out when he wasn't making a baby?" conversation slightly more mortifying.