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." the nun answered.
"In fact, I don't think it likely that we can survive more than a day
or two."
"I agree." said the nun.
"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 could see
them?"
"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? Then why don't you stick it in the camel's ass
and let's get the hell out of here."