Vaselina

Vaseline and super glue
A little boy came down for breakfast one morning and asked his grandma, Where's Mom and dad?"
And she replied, "they're up in bed."
The little boy started to giggle and ate his breakfast and went out to play.

Then he came back in for lunch and asked his grandma "where's Mom and Dad?"
And she replied; "they're still up in bed."
Again the little boy started to giggle and he ate his lunch and went out to play.

Then the little boy came in for dinner and once again he asked his Grandma "where's Mom and dad?"
And his grandmother replied; "they're still up in bed."
The little boy started to laugh and his grandmother said;
"Every time I tell you they're still up in bed you start to laugh what is going on here?"

The little boy replied, "Well last night daddy came into my bedroom and asked me for the Vaseline and I gave him super glue."