I haven't tried anything like this since high school, so I know this is going to suck, but I'll stick my neck out anyway:
In the country, on a farmstead lay a horsetank with fish therein
There sheep, dingy suffolks, would drink, and those shy ewes snorted the drink
There were also a boy and girl who looked longing into that sink
Then said the girl, "Brother, Momma fixed us good stuff in the kitchen.
Now that we've had our fill of lamb, Mother dear is catching a wink.
While she's sleeping we can have fun! In the horse tank let's go swimming!"
So rushed the two outside to swim. She splashed and made the boy to blink.
Under the dark water the boy thrust her as he grabbed her hairy noggin.
After a bit the boy said to the girl, "Will Mom soon wake you think?"
Scarcely had they spoken when they heard their mother, "Where are you my children"
The door of the trailer swung wide, "Did you think me you would hoodwink?
I did not fall so fast asleep that I would not miss my little children!
Now son get a good switch for me, and you, daughter, out of that drink.
After you get your licks, you'll go pull weeds for me in the garden!"