I used to sing this around 1946:

The farmer and the maid
Were courtin' I declare,
Down by the fence,
But they didn't know I was there.

The farmer he was bashful,
And the maid, she was shy.
He asked her if he could,
And this was her reply:

"You can do it if you wanna,
But you got to do it right--
Not like the way
that you did the other night.

For if you do,
I won't be true,
I'll never let you
(slight pause)
kiss me again."