An old man is drinking a beer

a young boy passes by and, intrigued, asks if he can have a sip. The old man says:

-can your dick touch your ass?

-no, replied the little boy.

-then you can't have this,said the man

then the mans pops a cigarette, the little boy asks if he can try, So the old man says:

-can your dick touch your ass?

-no, replied the boy.

-then you can't have this, says the man

after a while the little boy is eating some cookies, the old man asks if he can have some. The boy says:

-can your dick touch your ass?

-yes, said the man

-then go fuck yourself, replied the boy.