Little Johnny... Fascinate

A teacher asks her students to give her a sentence with the word "fascinate" in it. A little girl says, "Walt Disney World is fascinating."The teacher says, "No, I said, 'fascinate.'"Another little girl says, "There's so much fascination when it comes to sea life."The teacher again says, "No, the word is ."Little Johnny yells from the back of the room, "My mom has such big boobs that she can only fasten eight of the 10 buttons on her shirt."