Priest and nun in a desert

A nun and a priest were crossing the Sahara desert on a camel.
On the third day out the camel suddenly dropped dead without warning.
After dusting themselves off, the nun and the priest surveyed their situation.
After a long period of silence, the priest spoke.
"Well sister, this looks pretty grim."
"I know, father."
"In fact, I don't think it likely that we can survive more than a day or two."
"I agree."
"Sister, since we are unlikely to make it out of here alive, would you do something for me?"
"Anything father."
"I have never seen a woman's breasts and I was wondering if I might see yours."
"Well, under the circumstances I don't see that it would do any harm."
The nun opened her habit and the priest enjoyed the sight of her shapely breasts, commenting frequently on their beauty.
"Sister would you mind if I touched them?"
She consented and he fondled them for several minutes.
"Father, could I ask something of you?"
"Yes sister?"
"I have never seen a man's penis. Could I see yours?"
"I supposed that would be OK," the priest replied lifting his robe.
"Oh father, may I touch it?"
This time the priest consented and after a few minutes of fondling he was sporting a huge erection.
"Sister, you know that if I insert my penis in the right place, it can give life."
"Is that true father?"
"Yes it is, sister."
"Then why don't you stick it up that camel's ass and lets get the hell out of here."