Sleep in the Barn

Sam decided to go skiing with his best friend, Dean. They loaded up Sam's jeep with their skiing equipment and headed north. After driving for a few hours, they got caught in a horrible blizzard. Slowly they arrived to a farmhouse and asked the lady of the house if they could spend the night there.
'I am recently widowed and I'm afraid my neighbors will gossip if I let you stay in my house,' she told them.
'Don't worry, we will be more than happy if you let us sleep in the barn,' Sam said.
Nine months passed by and Sam got a letter from the widow's lawyer. He read it, and called up his best friend Dean.
'Hey buddy, do you remember that lady at the farm we stayed at? When we had to sleep in the barn.'
'Yes, I remember her.'
'Did you get up in the middle of the night to go and have sex with her?'
'Yes, I have to confess it.'
'Did you told her my name instead of yours?'
Dean's face turned red and he said shamefully, 'Yes, I'm afraid I did.'
'Well, thanks a lot buddy! She died and left me everything!'