Here i go again

Mother returned from 2 days away
Her little boy greeted her by saying,
"Mummy, guess what! Yesterday!
I was in your wardrobe, playing

Daddy came in with the lady next door
And their clothes started to drop
And they lay undressed on the bed
And then daddy climbed on top ..."

Mother held up her hand.
"Not another word. That story's bad
Exactly what you've just told me."
I want you to tell to Dad

As Dad walked into the house,
His wife said, "I'm off. I'm packed already, see? "
"But why--" asked the startled father.
" Sonny. Tell him what you told me."

"Well," Sonny said, "I was playing in your wardrobe
And daddy came in with the lady next door
And they got undressed
And all their clothes were on the floor

And they got up on the bed
And then they did that thing
That you did with Uncle John
When daddy was away, last Spring."