Getting fit - best programme yet

A Bloke calls the company and orders their 5-day/5-kgs weight loss programme.

The next day, there's a knock on the door and standing before him a voluptuous, athletic, 19 year old babe dressed in nothing but a pair of Nike running shoes and a sign around her neck. The sign reads, 'If you catch me, you can have me.'

Without a second thought, he takes off after her. A few kilometres later huffing and puffing, he finally gives up.

The same girl shows up the next four days and the same thing happens.
On the fifth day, he weighs himself and is delighted to find he has lost 5 kgs as promised.

He calls the company and orders their 5 day – 10 kgs programme.
The next day there's a knock at the door and standing before him is an even sexier woman, with the same sign around her neck. She's even fitter and really tests him, he can barely keep up. Sure enough, on the fifth day when he weighs himself, he discovers that he has lost another 10 kgs, as promised.

He decides to go for broke and calls the company to order their 7 day – 25 kgs programme.

'Are you sure?' asks the representative on the phone.. 'This is our most rigorous programme.'

'Absolutely,' he replies, 'I haven't felt this good in years.'

The next day there's a knock at the door and when he opens it he finds a huge muscular guy standing there wearing nothing but pink running shoes and a sign around his neck that reads, 'If I catch you, you're mine.'

He lost 31 kgs that week.