Old but still funny (slightly NSFW)

Little Johnny Came Down For Breakfast One Morning And Asked His Grandma.
“Where are Mom And Dad?”
Grandma Replied: “They’re Up In Bed”
So Little Johnny Started To Giggle Ate His Breakfast And Went Out To Play.

Then He Came Back In For Lunch And Asked His Grandma.
Little Johnny: “Where are Mom And Dad?”
Grandma Replied: “They’re Still Up In Bed”
Little Johnny Started To Giggle again, Ate His Lunch And Went Out To Play.

Later on Little Johnny Came In For Dinner And Once Again Asked His Grandma.
Little Johnny: “Where are Mom And Dad?”
Grandma Replied: “They’re Still Up In Bed”

Little Johnny lost it at this moment and started laughing his ass off. Getting Curious by this rather strange behavior Grandma asked, “What Give’s? Every Time I Tell You They’re Still Up In Bed You Start To Laugh! What Is Going On Here? ”
Little Johnny Replied: “Well Last Night Daddy Came Into My Bedroom And Asked Me For The Vaseline And I Gave Him Super Glue Instead“