It's about a confused man attempting to nurse a child despite a lack of functioning mammary glands. It doesn't meet the definition of "sexual intercourse."
You really think that was in his mind?
Did your parents neglect to teach you the facts of life?
Well, my momma didn't dance and my daddy didn't rock'n'roll, but if you want to take the thread this direction, I'm game.
There are a lot of forms of intercourse that are sexual, not just hitting home.
You pull into a drive-in
And find a place to park
You hop into the backseat
Where you know it's nice and dark
You're just about to move in,
Thinkin' it's a breeze
There's a light in your eyes
And then a guy says
"Out of the car, Longhair"
"Louise, you're comin' with me
And no more movies"
You don't speak as if you've ever been in the backseat with a hottie, but moving in certainly includes second base.
That's sex even if you don't get to third or home.
Do I need to take you through Proverbs, Canticles and Ezekiel?