A young woman in a REALLY skimpy skirt is waiting at a bus stop. 
When the bus arrives and the doors open she tries to climb the steps, 
however, her skirt is so tight she cannot step up onto the bus. So 
she pauses a moment and then reaches behind her and undoes her zipper
a bit.
     
She tries to step up again, and still can't, so she reaches behind 
again and fiddles with the zipper.  She tries to climb the steps again;
still no luck. 
      
As she reaches behind again, a pair of strong hands grab her about
the waist, pick her up and place her on the top step.
        
She turns to fix the barbarian with an icey stare and says, "What 
do you think you're doing?"
        
"Well, I always help out my friends, and I figured that after the 
second time you undid my fly we were at *least* friends!"