I have a few variations (I went to school in Scotland in the 90s) on the above including:

We are the (insert school name) girls
We wear our hair in curls
We wear our dungarees
Upon our sexy knees
You know that boy next door
He got my on the floor
We did it 50 times
And then he asked for more
My mother was surprised
To see my belly rise
My father jumped for joy
It was a baby boy

Also

All the girls in Spain wash their knickers in champagne.
All the boys in France do the hula hula dance.
And the dance they do is enough to TIE a shoe.
And the shoe they tie is enough to tell a lie.
And the lie they tell is enough to ring a bell.
And the bell they ring goes dingalingaling.

Also with the my boyfriend gave me an apple one, we ended with;

I gave him back his apple
I gave him back his pear
I gave him back his kiss kiss kiss
And I chucked him down the stairs
I chucked him over London
I chucked him over France
I chucked him over the USA and he lost his under pants
I took him to the cinema to buy some bubblegum
And when he wasn't looking I stuck it up his bum.

Weren't we classy haha!

--- SoupGate-Win32 v1.05
* Origin: www.darkrealms.ca (1:229/2)