A guy goes to a weight loss clinic

A guy goes to a weight loss clinic and says he needs to lose 20 lbs.

The receptionist sends him upstairs, where he finds a beautiful undressed woman with a sign that says

“If you catch me, you can have me.”

An hour later, he emerges, sated and 20 lbs. lighter.

A month later, he returns and needs to lose 50 lbs.

The receptionist sends him upstairs again, but this time there are two girls with the same sign.

A day later, he comes out 50 lbs. lighter.

A year later, he returns and needs to lose 100 lbs.

He gets sent upstairs again, where he finds a huge gorilla with a sign that reads

“If I catch you, You are mine.”