Father and Son

Son to father, "Dad, I had sex for the first time."

Father, "Well done son, isn't it amazing." He beamed broadly at his son, as if to say that is my boy.

Son to father, "Yes, dad it was amazing."

Father, "Son come and sit next to me and we can talk about it."

Son to father, "I'm having trouble sitting at the moment, dad, my arse hurts." 

His father's eyes widened. He stammered. He opened and closed his mouth. 

His son thought his father was doing a very good impression of a fish.