Think of Siamese twins

Some Argentines without means do it
People say in Boston even beans do it
Let's do it, let's fall in love

Romantic sponges they say do it
Oysters down in oyster bay do it
Let's do it, let's fall in love

Cold Cape Cod clams 'gainst their wish do it
Even lazy jellyfish do it
Let's do it, let's fall in love

Electric eels, I might add do it
Though it shocks 'em I know
Why ask if shad do it
Waiter bring me shad roe

In shallow shoals, English soles do it
Goldfish in the privacy of bowls do it
Let's do it, let's fall in love

The dragonflies in the reeds do it
Sentimental centipedes do it
Let's do it, let's fall in love

Mosquitoes, heaven forbid, do it
So does every katydid do it
Let's do it, let's fall in love

The most refined ladybugs do it
When a gentleman calls
Moths in your rugs do it
What's the use of mothballs?

Locusts in trees do it, bees do it
Even over educated fleas do it
Let's do it, let's fall in love

Let's do it, let's fall in love
Let's do it, let's fall in love