Euro softcore film form the '70's or early 80's?

[neonzombie]

A pair of blonde haired(I think dyed) girls who are either best friends or sisters fall in with an older man. I think maybe they are sharing him or both are just into him not sure. i remember a shower scene, a scene where they are tooling around the island (Greece maybe) on mopeds and nude swimming in the ocean complete with underwater photography. Ya know, all the basics. :) Would've aired on Showtime in the late '80's or early '90's.

[BedsideGreaser]

Sounds like 1980's The Wild and Beautiful on Ibiza.