The name of a certain movie..!!!

Hi,does anyone here can tell me the name of an italian or german cuckold movie where a husband(teacher)offers his wife in many ways to other men.There is a great scene where the hot wife licks fresh cum from a door where a young student came moments before.The husband watches and masturbates.In another part they are at at a swing club in a type of litte theater or cinema and some guys begin to touch the wife and do everything they want while the cuckold even helps them to use her.
Please i saw it once on VHS..i need to see it again.
Thanks a lot!!!