Two eighty year-old pensioners are taking a trip down memory lane by going back to the place where they first met.
Sitting at a cafe, the little old man says, "Remember the first time I met you over 50 years ago? We left this cafe, went round the corner behind the gas works, and I gave you the thrill of your life."
"Why, yes, I remember it well, dear," replies the little old lady with a grin.
"Well, for old time's sake, let's go there again, and I'll do it again."
The two pensioners pay their bill and leave the cafe. A young man sitting next to them had overheard the conversation and smiles to himself, thinking it would be quite amusing to see two old timers at it. He gets up and follows them. Sure enough, he sees the two pensioners near the gas works. The little old lady pulls off her knickers and lifts up her dress.
The old man pulls down his pants and grabs the lady's hips, and the little old lady reaches for the fence. Well, what follows is 10 minutes of the most athletic love making the man has ever seen. Limbs are flying everywhere, the movement is a blur, and they do not stop for a single second. Finally, they collapse and don't move for an entire hour.
The young man is stunned. Never in his life has he ever seen anything that equates to this - not in the movies, not from his friends, not from his own experiences.
Reflecting on what he has just seen, he says to himself, "I have to know his secret. If only I could make love like that now, let alone in 50 years' time!"
The two old pensioners have by this time recovered and dressed themselves.
Plucking up courage, the man approaches the pensioner.
He says, "Sir, in all my life I have never seen anybody make love like that, particularly at your age! What's your secret? Could you make love like that 50 years ago??"
The pensioner replies, "I don't think so, son. 50 years ago, that fence wasn't electrified!"