A new commander is being shown around his new posting at a foreign legion base when he comes across this donkey tied behind one of the sheds.
He asks "why is that there?"
The captain says that he and the men use it for sex!!! the commander thinks to himself no way will i ever do that.
After six long months of just pleasuring himself he starts to think that the donkey isnt that bad a proposition and decides what the hell, so that night he creeps round the shed and starts humping the donkey, just then the captain walks by and the commander asks him "is this the way the men do it???"
The captain replies: "well actually they ride it into town to the brothel but hey whatever takes your fancy!!"