Limericks have a very specific structure, illustrated by something like:

The limerick packs laughs anatomicalIn space that is quite economical, But the good ones I've seenSo seldom are clean, And the clean ones so seldom are comical.For your assignment, how about...

There once was a young lass named Claire,
Who loved talking about boys and their dares,
But when push came to shove,
The dramas of love,
Are never smooth sailing, beware!