a joke about twins:
"-A baby-girl was born and they called her Kate; when they saw her sister, they called her Dupli-Kate! When a baby-boy was born, they called him Kyle, when they saw his brother they called him Twin-Kyle, Twin-Kyle little star..."
I got to baby sit these twins for a whole day about 4 months ago, just to give their parents a break...whew!...i needed a break after that myself... :)