I dare you to guess what this movie is about!

Although now a keyword to be tagged in many porn websites, “twins” in the title of a an adult movie was not that common in 1976. Leave it to Carter Stevens to bring the sleazy and depraved stuff to the big screen. Four whole years before Taboo came out, Teenage Twins was hitting the incest topic just as hard, with much less fanfare.

Real life twin sisters, Brooke and Taylor Young, play Prudence and Hope, two college girls living with their mom and stepfather. Although they look the same, they couldn’t be more different. Hope is a free spirit who enjoys the filthier side of life, whereas Prudence is a lot more of a, well, prude (their word, not mine.)

As a lot of people might be aware of, twins tend to share a bond with each other they don’t have with other people. In this case, though, they always know when the other one is aroused or having sex and can feel exactly what the other one is feeling. When this happens for the first time in the movie, we see a hot and bothered Prudence go to her room to read her bible when she senses her sister fucking a truck driver. She does her best to resist, but it’s a lost battle, so she uses the bible as a prop in what turns out to be kind of a big secular statement for its time.

The film doesn’t only have the real life sister incest to deal with, pretty much everyone fucks everyone in this movie, including when a curious Hope finds her mother with another guy, a fact that led to an instance of fairly questionable parenting, to say the least.

The story also takes a dubious turn, as Gerald, the girls’ stepfather, a college professor who teaches a witchcraft course, gets his hands on the Necronomicon (a nod to H.P. Lovecraft’s fictitious book of black magic.) All of a sudden, Prudence’s virginity has a new use, and an orgy scene is magically justified.

Don’t expect good acting. Teenage Twins certainly won’t give you that. I’d be harsher on the casting choices, but it can’t be easy to find two hot twin sisters who’d be game with incest porn and also happen to be trained thespians.

The soundtrack is as solid as they get, and it actually got released as an album. Hard funk, solid bass hooks and nice arrangements. It’s amazing how good all these original scores were in the 70s, and crazy that they pretty much ended up just being library music.

The ending feels a bit abrupt, and I don’t want to do any spoilers, but be aware of that. In the end, it’s not a particularly good film and its importance lies on its twin sex gimmick. Nevertheless, this was probably the first instance of real lesbian incest being shown on screen for profit, and that has to count for something.