A big fire

A fireman came home to his wife and told her that at work they have a drill. When the first bell rings we put on our gear, when the second bell rings we jump in the truck, and when the third bell rings we are on the way to the fire. I want something like this here. Except when I say 1st bell you take off all your clothes. When I say 2nd bell you jump into bed. When I say 3rd bell we screw all night. So the next night he came home and said 1st bell, she took off all her clothes. He said, "2nd bell." She jumped into bed. He said, "3rd bell." They started going at it. About half an hour into it the wife said, "honey?"
"Yes dear."
"You need more hose, your not getting to the fire!"