An Englishman, a Scotsman, an Irishman and an Arab

are out in the desert and completely starved of sex. Then, one day, they see a beautiful woman in an oasis, wearing nothing but a pair of boxers, on which is a red rose.
The Englishman declares "I claim this woman by the red rose of England", and removes the pants. Underneath he finds a second pair on which is a thistle.
The Scotsman then approaches the woman and says "I claim this woman by the Scottish thistle", and removes the pants. Underneath, he is surprised to find another pair, this time with a shamrock on them.
So the Irishman approaches declares "I claim this woman by the lucky shamrock of Ireland on her undergarments", and he removes the pants...
The Arab then approaches the woman and says "By the beard of Allah..."