A Texas cowboy rides into town after several months on the range and heads for the nearest saloon. As he enters, he notices a ravishing redhead at the bar and swaggers over to her. "Evening, missy," he says with a smile. "Could I buy you a drink?"
Returning his smile, she replies, "Well, Tex, you could, but it wouldn't do you any good. You see, I'm a lesbian."
Having spent most of his life on the open range, the cowboy is not very worldly, and with a confused look, asks, "What's a lesbian?"
The woman grins at his naivete and says, "Let's put it this way, Tex. When I wake up in the morning, I'm thinking about women. When I'm at work, I'm thinking about women. When I go home at night, I'm thinking about women. And when it comes time to have sex, I go looking for women." With that, she turns and walks away.
The cowboy continues leaning on the bar, considering this new information, when a sweet young thing comes up to him and asks, "Excuse me, but are you a REAL cowboy?"
Pushing his Stetson back on his head, he clicks his tongue and answers, "Well, missy, I used to think I was, but I just found out I'm actually a lesbian!"