Girl takes her clothes off.
You take your clothes off.
She has a pink thing with flabby skin around it inbetween her legs.
Your snake should be erect by this point.
Stick your erect snake into her flabby pink thing.
Move it in and out.
When your richard is very hot, and feel good, go faster and hope she screams.
Then white stuff comes out inside of her.
She may become pregnant.