Expert Mouths(1978)

Charly and Richard go on a skiing holiday. They fall in with two blondes, Diane Dubois and Valeire Martin's, and have lots of fun with them. When the two girls leave the two mena finally have a go at skiing and break their legs. In the hospital, however, the nurses, Barbara Moose, Cathy Stewart and Brigitte Lahaie, are very friendly and the doctor joins in the orgy