A blonde is at home with her girlfriend, who is also blonde,

A blonde is at home with her girlfriend, who is also blonde,
she drops her candle and Hop! Fire...
First Blonde : Ahhhh !! Call the fire department quickly !!!
Second blonde: Yes! what are the numbers already?
First blonde: 18 !!
Second: Well, it's not going until 9 ...
First: Bah do twice 9 ... 9 + 9 that make 18 nan?
Second: Oh yeah!
01 09 10