It's a sex-driven
friendship — since everything is sex-y—(or suggestive of sexual attraction between two so-called friends) that embraces the fact that any
human act, even a friendly attraction, is consciously or unconsciously motivated by one's libido. Not to be confused with
situationship which of itself arises out of inherent sexual motives . It can also be applied to a relationship that has no romantic illusions of selflessness and unconditionality.