Little Suzy, age 9, and Little Johnny, age 10, are sitting on the front porch swing.
Little Johnny says to Suzy..."Screw you Suzy."
A minute goes by and Little Suzy turns to Johnny, and says..."Screw you Johnny."
Another minute goes by, and Johnny says to Suzy..."Screw you Suzy."
In a minute or two Suzy says to Johnny..."Screw you Johnny."
A few minutes pass, and Johnny says to Suzy..."Screw you Suzy."
A minutes later Suzy says to Johnny..."Screw you Johnny."
About that time an adult steps out on to the porch and says..."What are you kids doing?"
They answer in unison....."We're having oral Sex!"