I'm making a baby shower cake for a couple having their first kids, twins, one boy, one girl. Any suggestions for a witty saying to write on the cake?

two times the trouble
two times the fun
four times the love for everyone!

(alternate last line: lots of love for everyone!)

when i was having my twins, we used the saying, 'who would have thought we'd have so much luck? not just one, but two baby ducks!'

of course, our theme for the shower (and the nursery) was ducks, so it fit nicely!

How about a mathematical formula?

Mom + Dad = Baby2 (like to the second power).

Or

2 lovely babies 2 love!

or just simple:

2 Bundle of joy

Thanks everyone! I wanted to do the "2 times the trouble" one but couldn't fit it so I went with "2 loevely babies." I'll post a pic when I get a chance.