“Stroking an Animal” is a dull, pretentious Catalan “four seasons with a polyamorous threesome” melodama in which not a lot happens. Well, not a lot that involves people with their clothes on.

Pointing itself at the “obvious” flaws in such an arrangement — “obvious” to those not in it, or “into” it — it meanders towards a conclusion as inconclusive as its introduction.

Mariña and Ada (Lidia Veiga, Ánxela Ríos) are really into each other and into “it” as the film opens on a heavy-duty makeout session, sans clothes, shot in a near blur of extreme close-ups.

When they’re done, we realize they were in a tent in the Pyrnees, as they exit and finish off their frolic with a topless dip in a mountain stream.

A bearded, topknotted hipster (Xulio Besteiro) strolls up and captures them on his camcorder. He’s not just a creep spying on lesbians, which would have been dramatic, if cliched. We quickly realize he’s part of this arrangement as he joins in on their carnal carrying on.

Tomás, as we eventually learn his name to be, is their third wheel. Everybody’s experimenting, relishing every chance to share a bed and the forbidden fruit of a non-monogamous relationship.

But all this “Stroking an Animal” is going to lead to jealousy, hard feelings and “tests” of the depths of love. Or so every other movie to dabble in the subject has taught us.

In Ángel Filgueira’s aimless, mostly drama-starved “Cando toco un animal,” the “seasons” or chapters — there are more than four here — are introduced by quasi-poetic musings in written, graphic form — thoughts on dragonflies, cats, this and that.

“I read that cats bite when the can’t containt the love that they feel inside.”

Symbolic? Maybe.

“Biting” is about the time trouble sets in as SOMEbody wants a little more of SOMEthing that SOMEbody else can’t give her, sexually.

These chapters, in Galician with English subtitles (like the dialogue), are written by Mariña, we learn, a writer who is sort of participant/observer to all this.

Only she isn’t. Filgueira has made a movie with no actual point of view, no protagonist for the audience to identify with, to lead us through the bare bones of this “story.”

Stripped of story (mostly) and drama (almost entirely), what we’re left with is a lot of coital coupling and thrupling. Take away the “chapter” headings and this is straight-to-video titilation, and not all that titilating at that.

Rating: unrated, explicit sex, nudity

Cast: Lidia Veiga, Ánxela Ríos and Xulio Besteiro

Credits: Scripted and directed by Ángel Filgueira. A Breaking Glass release.

Running time: 1:09