A priest and a nun are in a snowstorm. After a while, they find a small cabin

A priest and a nun are in a snowstorm. After a while, they find a small cabin. Exhausted, they prepare to sleep. There is a stack of blankets and a duvet on the floor, but only a bed. Gentleman, the priest says:
- My sister, you will sleep in the bed, and I will sleep on the ground, in the down.
When he had just closed his down, and was falling asleep, the nun said:
- Father, I'm cold.
He opens the closure of his sleeping bag, gets up and takes a blanket and puts it on her. Again, he settles in the down, closes it, and lets himself sink into sleep, when the nun still says:
- Father, I'm always very cold.
He gets up again, puts another blanket over her and goes back to bed. Just as he closes his eyes, she says:
- Father, I was so cold.
This time, he stays in bed and says:
- Sister, I have an idea: we are here in the middle of nowhere, and no one will ever know what happened. Let's pretend we're married.
Finally answered, the nun answers:
- Yes, it's okay.
And the priest shouts:
- THEN YOU TAKES YOUR ASS AND YOU TAKE YOURSELF YOUR OWN FUCKING COVER,
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