Do you know what I think?

Fred and Mary got married, but can't afford a honeymoon, so they goBack to Fred's Mom and Dad's for their first night together. In theMorning, Johnny, Fred's little brother, gets up and has his breakfast.As he is going out of the door to go to school, he asks his Mom if FredAnd Mary are up yet.
She replies, "No".
Johnny asks, "Do you know what I think?"
His mom replies, "I don't want to hear what you think! Just go toSchool."
Johnny comes home for lunch and asks his mom, "Are Fred and Mary upYet?"
She replies, "No."
Johnny says, "Do you know what I think?"
His mom replies, "Never mind what you think! Eat your lunch and go BackTo school."
After school, Johnny comes home and asks again, "Are Fred and Mary upYet?"
His mom says, "No."
He asks, "Do you know what I think?"
His Mom replies, "Ok, now tell me what you think?"
He says: "Last night Fred came to my room for the Vaseline and I thinkI gave him my model airplane glue."