Director Dirty D brings us another collection of 15 Sybian-riding amateurs who supposedly won't be allowed to stop until they've cum ... but it's not always easy to tell when/whether they've done that, and in at least one case, we'd willingly have certified that she had just to be able to stop looking at her.

But first, the good news: The movie leads off with one of its strongest scenes, blonde Candi who strips seductively out of her undies and climbs aboard the Sybian as if it were made for her ... and the more Dirty cranks up the vibrations, the more she loves it.

Then there's Nicky, a slightly older redhead who can't seem to get enough of what the Sybian can deliver—and whose tits, once she stops mashing them against her chest, wave beautifully as their owner undergoes massive clitoral stimulation.

On the down side, there's Mary, a "redhead" (more or less), who never seems entirely "with it" during her scene. Her various bruises (less visible on small screens), including a black eye, coupled with her general unresponsiveness, even as Dirty increases the power, makes this a XXX experience we'd rather have missed.

Fortunately, on the whole, the gals are attractive, and if even half of them actually enjoyed cumming on camera as much as they appear to, it's enough for us to give this disc a cautious recommendation.