Singing Telegrams

There was this traveling salesman traveling through Kansas on his way back to Denver from a business trip in St. Louis. It was getting late and he was tired so he pulled off the road and drove up to this farm house. He walks up to the farm house seeing a light on and knocks on the door. The farmer comes to the door and says, "Can I help you?" 
The salesman says he was tired and could he spend the night and leave early in the morning? The farmer says, "You'll have to sleep in the barn, because I only have 2 bedrooms. One for me and the other for my daughters Venus and Nelly." 

The salesman excepts the invitation to sleep in the barn. But the salesman was wide awake by now so in the middle of the night he slips in the house and has sex with Venus and Nelly. The next morning the salesman is getting ready to leave and Venus says she wants to come to Denver and live with the sales man. He says, "OK" and heads off to Denver.

About six months goes by and the salesman and Venus are having their problems when there was a knock on the door. The salesman opens the door and there was this young man standing at the door. The salesman says, "Can I help you?" 

The young boy says, "Are you the salesman who spent the night at the farmers house in Kansas six months ago?" 

The salesman says yes. The boy says, "Singing telegram from the farmer to the salesman." 

The salesman says, "well sing it to me." 

The boy sings, "Are you the one who put the flowers on the cushion, put the footprints on the ceiling all around? Since you have been with Nelly she has had trouble with her belly and I think it's time you came around."

The salesman sends the singing telegram boy back to the farmer in Kansas. The singing telegram boy reaches the farm house and knocks on the door. The farmer comes to the door and says, "Can I help you?" 

The boy says, "Singing telegram from the salesman to the farmer." 

The farmer says, "Sing it to me." 

The boy sings,  "Yes, I'm the one who put the flowers on the cushion, put the footprints on the ceiling all around, and since I have been living with Venus I have had trouble with my penis so I think we're both even all around!!!"