Master Liam, known in professional circles as the inimitable Doctor Spank, is a supposed expert of therapeutic sadomasochism; and in the interest of fostering an equally therapeutic sense of viewer-catharsis, two such case-studies are herein documented.

Eye-catching it may be, the generic design of the case-cover is misleading in its advertised hour-long duration: the feature is 49 minutes in length (a "bonus" slideshow adding four to the end).

Fortunately, the error is readily exonerated by visceral performances from stars Krissy and Phoenix. The former is well-endowed, extravagant body-art and piercings to match her pretty freckle-face; and her proclivity for pain is shared by the smaller, coarser latter. Both are identically treated, shedding their undergarments and bending butt-skyward to receive the good doctor's one-handed applause. Red cheeks give way to redder welts whilst they recite the alphabet or count to ten.

High-quality video and emotive wailing make this a session to book. Best of all, you don't even need an appointment!

Retailing: S/M fans will swing their sticks to this enjoyable (albeit short) visit to the Doctor's office.