Paint my house

Once a blonde was short of cash. She went to a few houses in her neighbourhood looking for a job. In one house, a man told her he was looking for someone to paint his porch, and aked her if she wanted to do it. The blonde accepted the job and asked $50 for it. This was a lot less than what the man had expected to pay for the job. So the deal was struck.
The man went inside his house and told his wife that a blonde had accepted to paint their porch for just $50. After sometime the blonde entered the house and told him that she had finished her work and collected her wages. Just before she left she told the guy, "By the way that was not a porch, that was a lexus."