A man & his wife have been stranded on a deserted island for many years. One day a new man washes up on shore. He & the wife are very attracted to each other right away, but realize certain protocols must be observrd. The husband, however is very glad to see the second man there. "Now we will be able to have three people donig 8 hour shifts in the watchtower, rather than two people donig 12 hour shifts". The second man is only too happy to help & in fact volunteers to do the first shift. He climbs up the tower is is standing watch. Soon the husband & wife start placing stones in a circle to make a fire to cook supper. The second man yells donw, "Hey, no f*cking". They yell back, "We're not f*cking". A few minutes later they start to put driftwood into the stone circle. Again the second man yells down, "Hey, no f*cking". Again they yell back, "We're not f*cking". Later they are putting palm leaves on the roof of thier shack to patch leaks. Once again the second man yells down, "Hey, I said no f*cking". They yell back, "We're not f*cking!!". Finally the shift is over so the second man climbs down from the tower & the husband starts to climb up. He's not even halfway up before the wife & second man are screwing each other's brains out. The husband looks out from the tower & says, "Son-of-a-gun. From up here it DOES look like they're f*cking".