A man went to a health farm were he was offered three weight loss plans.
One at $100
One at $200
And one at $500.
Choosing the cheapest option he was told to shower and enter the first sauna.
Inside was a pretty naked young women with a sign over her head which said.
If you catch me in five minutes you can have sex with me.
The man immediately started to chase the young woman round the room but unfortunately his time ran out before he could catch her.
He was delighted however to discover he had lost 8 lbs of fat.
Next day he decided to try the $200 treatment.
Once again he was told to shower but this time enter sauna 2.
Inside was another naked young girl but this time she was wearing high heels.
Again there was a sign above her head that said.
If you catch me in five minutes you can have sex with me.
Thinking the high heels would slow her down he eagerly began the chase. Unfortunately after five minutes he still hadn't caught her.
Nevertheless he had lost another 5 lbs of fat.
As the next day was his last he decided he might as well go the whole hog and try the $500 treatment.
Again he was told to shower but this time enter sauna 3.
Eagerly he stepped inside but was disappointed to find the room empty. Suddenly he hears the door he has entered lock and from the other side of the room in walks a naked chronically obese ugly woman. In the rolls of her fat is a sign that reads
If I can catch you in 5 minutes I can have sex with you.

Funny as hell.