Oh, I know what you're thinking: Just what the adult video world needs is another incest film! What's this one called? Taboo 14? If so, then I'm in complete agreement with you. But happily, somewhere along the line, producer Marc Corby and director Robert McCallum took an overworked film idea and created one of the most erotic and intimate adult films I have ever seen.

Unthinkable has a rather simple, if not disturbing storyline. We are introduced to a wealthy, but hopefully not typical, California family whose children engage in some rather unnatural practices together. Adorable Bunny Blue, who will most certainly offer Chelesa Manachester strong competition for the horny teenager film parts, plays the young Sandy. She's sexually initiated by her handsome brother, Skip (Scott Irish). We find out that Skip was previously initiated by his older sister (Pamela Mann). And all of this sexual interplay was overseen by the horny family maid, Anna, played deliciously by Tamara Longley. Mom and Dad, played by who else but Eric Edwards and Honey Wilder, are totally oblivious to the close family ties between their ever so compatible children.

While the plot might be legally distasteful, the sex glistens in its own natural juices. The two sexual encounters between Bunny Blue and Scott Irish are visually breathtaking and will receive top consideration for various AVN awards next year. And Tamara Longley is a great performer: she looks like Marilyn Chamber and sounds like Brenda Vaccaro.

All of the sex scenes in Unthinkable are marvelous; the entire cast should be applauded. Unthinkable also features a tremendous musical soundtrack that really enhances the whole film. Finally, if you're looking for 80 minutes of the wildest sex imaginable, then it would be simply Unthinkable to miss this film.