A father and his fourteen-year-old son are enthusiastic woodsmen. One evening, while out in the countryside, they find themselves caught in the woods as dusk falls. They pitch their tent and, following dinner, they settle down to sleep.
In the middle of the night, the man awakens and inquires, “What are you doing, son?”
After a brief pause, the son responds, “I’m wanking, father.”
“Oh. How is that going?” the father asks.
Another moment of uncomfortable silence ensues.
“It’s difficult, but I can’t really feel anything,” the boy admits.
To this, the father suggests, “Maybe you should try it with your own cock, then.”