T'was an amusing hour

Pair up and go and take a portrait of each other.
So the first one the girl ties the bloke up to a park bench
He takes a standard portrait of her standing in front of some flowers.

Second pair the girl rubs some soot into the blokes face and takes a pic of him holding some flowers.  The poor bloke then has to walk around London (probably his first time on TV )  with a sooty face
He gets revenge and makes her scrub the street !

Third one the girl dresses the bloke up in her clothes to make him look like her ( scary !  )

Yes I thought the crack pun was very unethical I am surprised they didn't cut that.

And every one said, 'If we only live,
We too will go to sea in a Sieve,---
To the hills of the Chankly Bore!'
Far and few, far and few, Are the lands where the Jumblies live;
Their heads are green, and their hands are blue, And they went to sea in a Sieve.

Edward Lear
http://www.nonsenselit.org/Lear/ns/jumblies.html