I must have told this before but it's such a depressing day here in 'closed for business' Ireland....
A handsome young boy is the sole survivor of a shipwreck on an idyllic desert island
There is plenty of food and water to survive and the lad grown into early manhood without ever meeting a fellow human being
Desperate to fill in the empty hours, he begins to be aware of his developing manhood and decides to do tricks with it
He sits on the pebble shore and begins to fist push pebbles along with it and later, to flick them into the sea
He develops his 'trick' to throw them further and further into the sea until h manages extremely impressive distances

One day he is sitting on the beach occupying himself, as usual, when a beautiful young woman, slightly his senior, swims ashore, the survivor of another shipwreck
"What are you doing?" she asks - he explains
"I'm sure we can find something far more enjoyable to do with that" she says
She sits beside him, puts an arm around his shoulder and begins to fondle him till he becomes very aroused - a totally new experience for him
Under her instructions, they begin to make love until, at last they both lay gasping on the beach
"What do you think of that?" she asks
"It was wonderful" he replies, "but I suppose you know you've ruined my flicker?
Jim