Hay Country Swingers (1971)

Young Sabine leaves her parents' home in the city to look for happiness in the big wide world. After she is introduced to the art of lovemaking by a helpful couple, she arrives at the village of Fingerlingen and finds a job in an inn. Soon surrounded by admirers of her attractive appearance, Sabine quickly acclimatizes to a village where pretty much everyone wants to do it with everyone - and vice versa.