Lèvres collées

A woman and a man are engaged in affixing a large number of gummed postage stamps to envelopes. They periodically interrupt this activity for some kissing. Unfortunately, their method of moistening the stamps is licking them ... so, by rapidly taking it in turns between licking the stamps and kissing each other ... well, you can guess. Primitive physical comedy, but more imaginative (and more romantic) than pratfalls or watering the gardener with his own hosepipe. (imdb)