Push up

I once met a lady
who swore that bras are great.
If you wore them all through life
they'd keep your boobies straight

She said it helps those muscles
It keeps your bosom strong
I offered up a story
Which proves that she was wrong

Most older ladies of a time
Wore bras with bits of steel
Or whalebone for their corsets
To keep that cleavage real

With push up bras and bullets
Their boobs were always locked
No chance to have a jiggle
when boobs were always blocked

With all that reinforcement
They still all hit a snag
However bloody much you do
Old boobies will still sag. 
.