An 8 year old's definition of penis

A young boy & his friends were walking home from school, that day they had a sex education class and didn't understand what a penis was. They asked the boy to ask his Dad, because he was the one they thought would get a straight answer.

When the boy's Dad got home from work, he asked his Dad. His Dad showed him his penis and said "if it was an inch longer, it would be perfect."

The next day on the way to school, his friends asked him "did you find out what a penis is?" He stopped, pulled out his penis & said
"this is a penis & if it was one inch shorter, it would be perfect."