The song , considered by Child to be a version of the Two Magicians,was collected from the sisters Louisa Hooper and Lucy White of Hambridge, Somerset in September 1903.
There are other verses which Sharp collected:
Young women they are as rushes a-growing
If I was a young man I'd get a scythe & go mowing.

Young women they fly as birds in the air
If I was a young man I'd cock and let fire.

There are other verses from other singers which are even more explicit...
Mary