First order of business when I got home from school after a long day. Once the old man walked in on me unexpectedly just after I'd shot my load. Was on the couch naked in the family room - he was real bad mad and I really got it from his belt that day!! Used to it as I was always in trouble - my mouth let me down and I mouthed him that day by saying that I'd sprayed it on my belly and not on the furniture. made him even madder.
to Dogbreath150 :Sorry to hear your father was violent & had an unhealthy shameful attitude to sex. He could have told you that sex was a private act and that you shouldn't masturbate in communal areas because it is wrong to expose yourself & your bodily fluids to people that haven't consented to experience them. As you say, he should have been pleased that you were a normal healthy young man. :)