Fascinating

A teacher asks her class if anyone can use the word fascinate in a sentence. Brian raises his hand and says, "The sky is fascinating."
The teacher says, "No that's fascinating."
Jennifer raises her hand and says, "When I saw the tigers at the zoo I was fascinated."
The teacher says, "No that's fascinated."
So finally Little Johnny raises his hand and says, "My mom bought a new blouse with 12 pearl buttons, but her tit's are so big she could only fasten eight!