A man, a cat, and an ostrich walk into a bar. They sit down and the man offers to buy a round of beer.
"Sure," says the cat,
"That'd be nice but you know I'm not buying you one in return."

"Fine," says the man and goes to buy three beers. They drink and talk for a while until they finish their beer and then the ostrich asks if they'd like another.

"Please," says the cat,
"But there's no way I'm gonna pay for any later on."

The ostrich orders three beers and they sit and drink and talk for a bit longer.

When the time for the next time comes around the man and the ostrich both look at the cat expectantly.

"No way," says the cat.
"I made it damn clear that I'm not paying for any beer...you want more, you'll have to pay."

Sighing, the man gets up and asks for three more beers.

The bartender, who is obviously confused asks the man,
"What's going on?"

"Well," says the man,
"I found an old lamp a few years back and I gave it a rub, and this genie comes out, says he'll give me anything I wish for. But I'm not sure he really understood...I asked for a tall bird with a tight pussy."