Obsessed !

Banta had passed his 30th birthday and was still not married, so his father found him a nice girl, whom he married. Less than a month later, his father caught him masturbating in the garden shed.
"What`s this?" he said.
"I thought you`d stop doing that once you got married."
"But Dad," answered Banta son, "the poor girl`s not used to it. Her little arms get tired."