"Making Cigarettes" joke

A little boy and girl were walking along a trail in the woods. The little girl noticed that some of the animals were behaving oddly.

"Little boy, why is that rabbit on top that other one"? she asked.
The little boys stops to consider his answer, and replies, "they're making cigarettes".

"Cigarettes"! she says, as they countinue walking along.

Pretty soon they approach a couple of racoons.

The little girl asked, "are they making cigarettes too"?

"Yea" says the Little boy.

The little girl looks around and says "It looks like all the animals are making cigarettes". "Why don't we make cigarettes", she asked.

The little boy was quick to say "Ok"!

A short time latter the little boy and the little girl were walking out of the woods, when she asked, "Little boy, what kinda cigarettes did we make"?

The little boy stops to think about his answer, then replies,"Well if you get a hump in your belly it's a Camel, and if you don't it's a Lucky Strike".