My children all look the same!

Robin insists that though he knows he's Hugo's father, he's pretty sure that I can't be his mother. However we are one of those families that all look like each other, its just I'm at one end of the spectrum of the family gene pool and Hugo is at the other. This is a drawing of Flo when she was a baby. I've just been playing with it in painter - turning it from a pencil drawing to chalk and charcoal. It's the spitting image of Xavier.