Spank Me memes

A dad told his son never to hit girls, so the son replied, "I promise."

When the son got older, he was doing the dirty with "a girl," and the girl says, "Spank me, daddy..." and the son responds, "My dad said never to hit a girl."

Then the "girl" takes off the wig, and it's his dad, and the dad said, "Good job, son!"

Son:...... um