Foxy Lady (1977)

Ginger & Cliff live in the enviable world of expensive homes, erotic sports cars & non-stop sex. Their bubble soon bursts when Ginger is kidnapped & held for ransom. Amidst all this, a stunning blonde appears at Cliff & Ginger's house. It's Shirley, Ginger's sister, who offers her help in any way possible. Meanwhile, the two abductors have taken Ginger to their island hideaway where Karen, an exotic Oriental beauty, meets them. The three of them proceed to take full advantage of their captive. Amazingly, Ginger manages to escape only to be intercepted by Amos, who promises to get her off the island if she gets him off first!