Just a suggestion.

Don't refer to the youngest person in your group or 'click' as the baby. In fact don't refer to anyone who has graduated high school and college a baby, even if that person looks like Doogie Howser. If your youngest friend is making you feel your own mortality or at the very least forcing you to bump up your next hair dying session keep in mind they have no control over their age just as you don't have any over your own. But the baby doesn't want to be constantly referred to as that, the baby. Especially, when they have their own baby at home in a crib. So cool it.

Unless of course, you want to be called the grandmother of the group.

Which I'm sure you don't.