i dont have twins, we thought we would have them, every generation in my family has a set. Dad wouldn't let mum have number 7, as her swore she'd end up with twins!! I know if i go for #4 ill end up having them... thats why DH wont let me. But seeing my grandmother and great aunt, even in their old age (they're identical) they still have that special bond, my grandmother "felt" my great aunt die...