Seriously, though, yes, a companion in all environments, not just the bedroom, and ideally one who wouldn't give themselves away as a provider to the casual observer.
Personally I think uncle/nephew is easier to sell than father/son (particularly if there is no resemblance), but of course the onus isn't just on the provider to make it creditable.
I've always thought that people who have mastered the social skills don't get enough credit for it.