A fellow has a week off from work and decides to play a round of golf
every day.

First thing Monday morning, he sets off on his first round and soon
catches up to the person in front.  He sees that this is a woman and,
as he catches up to her on a par 3, that, in fact, she's very
attractive.  He's interested and suggests that they play the rest of the
round together.

She agrees and a very close match ensues.  She turns out also to be a
very talented golfer and she wins their little competition on the last
hole.  He congratulates her in the parking lot, then offers to give
her a lift when he sees she doesn't have a car.  All in all it's been a
highly enjoyable morning.

On the way to her place, she thanks him for the morning's company and
competition and says she hasn't enjoyed herself so much on the course
for a long time.  He pulls up to her house, they kiss and she shows him
her appreciation...

The next morning he spies her at the first tee and suggests they play
together again.  He's actually quite competitive and slightly peeved
that she beat him the previous day.  Again they have a magnificent
day,  enjoying each other's company and playing a tight competitive
round of golf.

Again she beats him at the last hole, again he drives her home and
again she shows her appreciation.

This goes on all week, with her beating him narrowly every day. This
is a sore point for his male ego but, nevertheless, in the car home
from their Friday afternoon round, he tells her that he has had
such a fine week that he has a surprise planned:  dinner for two at a
fancy candle-lit restaurant followed by a night of passion in the
penthouse apartment of a city hotel.  Surprisingly, she bursts into
tears and says she can't agree to this.  He can't figure out what the
fuss is about but eventually she admits the reason.

"You see," she tearfully sobs, "I'm a transvestite."

He is aghast.  He swerves violently off the road, pulls the car to a
screeching halt and curses madly, overcome with emotion.

"I'm sorry," she repeats.

"You bastard," he screams, red in the face, "You cheating bastard.
You've been playing off the women's tees all week!!"