Sure enough Mr H (There may be more to come, when I have the time and inspiration)

Biker Jill

    Biker Jill is round and short
    Built for comfort not for sport
    Round the country she holds court
    On the back of her big Harley

Some bloody idiot called her fat
She hit him once and knocked him flat
Then upon his face she sat
And said ,now while you're down there

One night Jill went to a dance
Hoping to find some hot romance
Dressed in skin tight leather pants
That turned on all the perverts

She went and pulled this little bloke
And took him home for a fumble and poke
But his equipment was a joke
He nearly smothered in her cleavage

She said to him is your name Morgan
All lower case like your Church organ
Or did it come as a basement bargain
Or just a case of dicktheria

He said no,it has kept me happy
ever since I was dressed in nappies
usually its firm and not so floppy
but its never played in a cathederal

Biker Jill met a Chauvinist pig
Hit him with a shovel and he danced a jig
Said he thought himself so big
But he's all horn and no drive shaft!

The 2 things that bring Jill to the boil
Are the smell of leathers and hot sump oil
She uses a bike spring for a coil
If you bounce too hard you fly off