The Piston and the Shaft

There’s a shuttle coming into dock
A key fitting into the lock
That opens the gates between me and you
And turns up the heat on the stew
When we pass the baton tonight
We’ll wonder as we lose our grip
As it shuttles back and forth so freely
Which end’s the base and which is the tip?
We got a funny situation, you and me
We’re the piston and the shaft
But who’s going in and who’s coming out?
Who’s drinking wine out of who’s carafe?
Chinga, chinga, change, a little change
It’s a sacrament
Each night turn me over again
When the car parks in the garage
When the beauty receives her beau
There’s a border taut and bold
That’s a feeling we’ll never know
You’re the hard spot on my seat
I’m the drooling bitch in heat
I’m your gravy baster gun
You’re my creamy squishy bun
We got a funny situation, you and me
We’re the beaver and the hog
But who’s biting what and what’s eating whom?
We’re a dripping marsh full of frogs
Chinga, chinga, change, a little change
It’s a sacrament
Each night turn me over again