Well it takes place in a bar.
An old cowboy wanders into a bar and as is standard practice for such occasions orders a drink.
He sat at the bar drinking for a while and then a young lady sat down next to him. She orders a drink and then her eye catches his hat and boots, turning to face him she asks the cowboy "Are you a real cowboy?"
Looking up the old cowboy replied, "Well I've spent my whole life breaking in horses, going to rodeos, rearing cows, fixing fences, doctoring calves, pulling calves, bailing hay, cleaning my barn, fixing flats, working on tractors and feeding my dogs so I guess I am a cowboy."
As is the way of things he asked her what she is, her reply; "I am a lesbian. I spend my whole day thinking about women. When I wake up in the morning I think about women. When I shower I think about women. When I watch TV I think about women. As I work I think about women. I even think about women when I eat. It would seem that everything makes me think of women."
The cowboy nodded and then the two set about drinking.
A short while later a man sat down on the other side of the old cowboy and upon seeing the hat and boots the qeustion of "Are you a real cowboy?" appeared once more.
He replied, "You know I always thought I was but I just found out I'm a lesbian."