Ilsa the Tigress of Siberia (1977)

Ilsa the Tigress of Siberia is considered the third official installment in the Ilsa trilogy, which began with Ilsa: She-Wolf of the SS. This trilogy lacks narrative continuity; it merely revives the character, who had actually died at the end of the first film. Ilsa (Dyanne Thorne) enjoys “cinematic immortality”: she is not a woman subject to history, but an icon of evil who traverses the decades without aging or suffering the consequences of her past actions. Here, the saga adopts a Cold War style, transforming the protagonist into a ruthless Stalinist commander. In 1953, Ilsa runs a brutal Siberian Gulag where she attempts to break the will of a dissident Soviet athlete. Years later, she lives in Canada and runs a high-class prostitution ring. There, she encounters once again the only man she had failed to break.
At the 14-minute mark, Dyanne Thorne undresses in front of two men and reveals her beautiful breasts. The actress invites the men to join her for a threesome on the bed. After sex, Dyanne gets out of bed and drapes a fur coat over her naked body. At the 29-minute mark, Dyanne Thorne naked rides a man kneeling on a rug, wielding a whip. Another man watches them and drinks from a bottle, then joins them for sex. Two minutes later, the actress opens her coat and shows her bare breasts to a man sitting across from her. At the 60-minute mark, Dyanne Thorne is naked in the shower, her body covered in foam. Six people are in the same room with her, watching her as she washes. In this film, the beautiful Dyanne gives herself to two men at a time, and at the 62-minute mark, we find her in bed with two horny guys. At the 70-minute mark, the actress undresses in front of a man handcuffed to a wall and caresses him.