Liberated '70s couple seduce another couple into experimentation with bisexuality and group-sex.
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性爱学分
- 主演： ClaireWilbur CaseyDonovan 琳恩·劳里 GeraldGrant CarlParker
- 地区： 南斯拉夫
- 年代： 1974
Liberated '70s couple seduce another couple into experimentation with bisexuality and group-sex.