This one needs illustration so you'll have to imagine!

I love bras I think they're fab
But no one likes them more than dad
When mum's busy washing clothes
My daddy creeps up on his toes

We wait until we hear the shout
As mummy's giant boobs fall out
  We all cheer, he's such a star
My sneaky dads undone her bra

My brother calls them booby slings
And uses them for hamster swings
He says it makes their life more fun
But that one doesn't sit with mum

The twins they wear them like a hat
Or catapult them at the cat
The cat joins in and acts all cross
And chews them like they're dental floss

The fancy ones my sister wears
And fills them up with teddy bears
She dances round with sheer delight
She says she grew them over night

But best of all, the one I like
Is when we tie them to our kite
And watch them fly like Lacey wings
Those lovely frilly booby slings