Lorrie Johnstone mentioned this song in the thread Lyr Req: Mary Ellen at the Church turned up, but I figure it deserves its own thread.

Sheet music for this old music hall number can be found here.
^^
I'M SHY, MARY ELLEN, I'M SHY
Words and music by Charles Ridgewell and George Stevens
Published by Francis, Day and Hunter, Ltd., London, 1910.

[Note: The verses are in 2/4 time and the choruses are in 3/4.]

[VERSE 1] I courted Mary Ellen for fourteen solid years,
But she made me blush when she one night boldly said to me,
"You've never kissed me once, John, though I'd like you to," she sighed.
"Why don't you call me pretty names?" I hung my head and cried,

[CHORUS 1] "I'm shy, Mary Ellen, I'm shy.
It does seem so naughty, oh my!
Kissing is nicey, I've often heard say,
But still how to do it I don't know the way;
So you put your arm round my waist.
I promise I won't scream or cry.
So you do the kissing and cuddling instead,
'Cause I'm shy, Mary Ellen, I'm shy."

[VERSE 2] Last year with Mary Ellen to Lowestoft I went.
Mary Ellen said to me, "I'm going bathing in the sea.
So while I go and have a splash where all the ladies go,
You go and have a bathe amongst the men." I said, "No, no!

[CHORUS 2] "I'm shy, Mary Ellen, I'm shy.
It does seem so naughty, oh my!
Men are so rough, and I'm sure they will stare.
They'll SPLASH me and DUCK me, if I go in there.
The girls ain't so rough as the men,
And they wouldn't duck me, or try,
So I'd rather bathe here along with the girls,
'Cause I'm shy, Mary Ellen, I'm shy."

[VERSE 3] While out with Mary Ellen, we met a six-foot man,
"That's the saucy scamp," said she, "who last week insulted me.
Now, just you thrash the massive brute." I looked at his six feet.
Then she said, "Take your coat off," but I said, "What, in the street?

[CHORUS 3] "I'm shy, Mary Ellen, I'm shy.
It would look so naughty, oh my!"
I said as I looked at that great hulking chap,
"If it wasn't for one thing, I'd give him a slap,
But look at the ladies about.
They'd all stop to look, and oh my!
If I take my coat off they'll see all my shirt,
And I'm shy, Mary Ellen, I'm shy."

[VERSE 4] To marry Mary Ellen I went to church one morn.
While the party with the bride went to church, I stood outside.
For quite an hour I stood there while she waited to be wed.
Then she came out and said, "Come on." "I don't like to," I said.

[CHORUS 4] "I'm shy, Mary Ellen, I'm shy.
It does seem so naughty, oh my!"
But still we got married and got home all right,
And kept up the fun with our friends until night.
Then they wished Mary Ellen goodbye
And they started to go. So did I.
Then she said, "You're not going!" I said, "Yes I am,
'Cause I'm shy, Mary Ellen, I'm shy!"