The perversity on display here is not the a tergo position adopted by the blonde mistress or the rake so drunk he has fallen out of the large double bed.
No the perversity is that WÃ¤chtler uses a medium as gentle as watercolour to incriminate the bad behaviour of this fornicating sot and his willing accomplice.
Not that getting drunk and having sex is always reprehensible, itâ€™s not. Not unless you do so in the presence of a subordinate, in this case a servant, with no choice but to watch.
These days, in the wake of the Starr Report, itâ€™s hard not to watch.Â Only just the other week, we had to hear about one of our social betters in the political class, caught up in a sexting scandal.
And while his employer may be half naked and sprawled across the floor, the butler comes out of it little better. To say heâ€™s overdressed for the occasion is putting it mildly.
But his poise, which says, Sir, You Called?, manifests an English class trope in which servile dignity might justÂ give you the upper hand in such situations: an X-rated Jeeves and Wooster.
All the moral authority in this painting is on the butlerâ€™s side. The Lord has none of it, and neither does the German artist, who appears to laughÂ at all concerned.
In fact, he may be more concerned with that sinuous line which snakes down the picture from the raised behind of the mystery blonde through to her paramourâ€™s flailing leg.
There is surelyÂ some overlap between the ‘one percent’ (those to blame for all the worldâ€™s ills) and those who have the wherewithal and the self-importance to employ a butler.
That could make WÃ¤chtlerâ€™s watercolours into a political statement in which the laughter cloaks despair. But just remember, that’sÂ a room service trolley and not a barricade.
This painting, along with some equally compelling film and sculpture by the artist, can be seen in A Needle Walks into a Haystack The Old Blind School, Liverpool, until October 26 2014.Â
It is part of Liverpool Biennial 2014. Thereâ€™s a good discussion of the eventâ€™s politics with regard to Peter WÃ¤chtler on the The Double Negative.