Porch and Porsche Joke

A man was looking for a person to paint his porch, so he hired a young lady and told her what to do.

After about 30 minutes, the lady came to the door and said "I'm done."

The man asked "how did you get done so fast?"

The lady said "it was hard at first, but it got easier towards the end. And by the way, it's a Ferrarri not a Porsche."