Her brother has a moustache.
Don't worry, they'll tell you.
The teacher tells you to spit you gum out. The train says, "Chew, chew, chew!"
Inzest
Because the label said, "Contents Under Pressure" Got this joke from my brother :D
They want to look like their mothers.
One has a moustache and smells of fish and the other is a walrus.