Once a girl is quite fantasised about "69".She has a regular boyfriend 
they have never done it before.

One day she invites her boyfriend to her apartment for romantic dinner. 
After heavy dinner, she tells him that she wants to do "69". But the 
Boyfriend doesn't have any idea about what is 69. Girlfriend gets upset 
but thinks that she can teach him how to do 69. she asks him to lay 
down...and she then lays on top of him in reverse direction so as in 69. 
The boyfriend is confused but is eager to know about 69. So he does as 
the GF tells him to do.

They lay down in this position for about 2 min. She is thinking that he 
will, by the time, get excited by this. but suddenly the GF has to let 
go one Fart...directly on her BF's face.

GF quickly apologises and asks him to stay in that position for some 
more time. After 1 min she has to let go one another fart....this time 
bigger than the previous.

The BF quickly throws her away, gets up, starts dressing up and yells at 
her.. "If you think I am gonna take 67 more like this, you are MAD"