This is an excuse for nudity, isn't it? I won't work nude unless it's integral to the plot. Not after that night in Tijuana....

Allan Sherman sang it:

Skin

You gotta have skin.
All you really need is skin.
Skin's the thing that if you got it outside,
It helps keep your insides in.

It covers your nose,
And it's wrapped around your toes.
And inside it you put lemon meringue,
And outside ya hang your clothes.

Skin is what ya feel at home in.
And without it, furthermore,
Both your liver and abdomen
Would keep falling on the floor.

(And you'd be dressed in your intestine)

A Siamese twin
Needs an extra set of skin.
When the doctor knows that you're feeling sick
Where does he stick his needle in?
In the end of your skin.

All your friends and all your kinfolks,
Whether poor or whether rich,
They have all got lots of skin, folks,
It's convenient when they itch.

(Nothing can match it when ya scratch it)

It fits perfectly.
Yours fits you, and mine fits me.
When you're sitting down, it folds and looks grand.
And then when you stand, it's where it's been.
Ain't ya glad you've got skin!

When you were just a little baby, why your skin fit fine.
And it still is gonna fit you when you're six foot nine.
So whether you're fat, tall, big, small, chubby or thin,
Ain't ya glad you've got skin

It could also be skin that is not your own, for people who are shy ;)

Hm, maybe I'll finally get around to taking photos of my tats (not that they're anything spectacular).